More+Proportional+Problems



Someone (with too much time and money) built a life sized Barbie tm dollhouse:

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The real house is built in a scale of 25:1. 1. If the front door of the toy house is 9 inches tall, how many __feet__ tall is the door at the real house? (Set up a proportion using 9 in and the scale, then convert to feet at the end)

2. If the real house is 60 feet high, how high is the toys house (in inches)? (Set up a proportion using 60 in and the scale, then convert to inches at the end)

3. If someone built an even bigger house at a scale of 3:500 with the dollhouse, how tall would //that// door be? (feet)

media type="youtube" key="7SjX7A_FR6g" width="405" height="236"media type="youtube" key="3Xc_eh-OlvU" width="405" height="223" The model car toys “HotWheels” make scale models of real cars. The scale is 1:64.

4. A real Dodge Charger is 200 inches long. How long is a HotWheels Charger (in centimeters)?

5. If someone were to build a real life hot wheels track, how tall (feet) would a loop be that is 16 inches tall in the toy?

The problem is that we do not have a scale. We can work around this and make an estimate of the Walker’s height by looking at other objects in the picture.
 * For the following problems, we are going to estimate the height of the “Imperial Walker”.**

1. In the picture, what is the height of the Imperial Walker? (cm) _

2. In the picture, what is the height of the tallest palm tree? (cm) _

3. Use an internet resource to find out how tall a palm tree is. (ft) _

4. Use your answers to #2 and #3 to find a scale for the picture and the height of the Walker:

5. If a 2 legged walker was 4cm tall in this picture, how tall would it be in real life?

6. Our answers to #4 and #5 are only estimates and could be wrong. Give at least 2 reasons why or estimates may be wrong: _ _ _ _


 * How tall would the HULK be** **in real life?**

In this problem, we can find the scale because it is easy to look up the height of the actor playing Thor

1. How tall is “Thor” in real life?

We cannot directly measure the heights of the characters in this picture, because their legs are cut off and the Hulk is slouching. So we will approximate these measurements.

2. Draw a point where you think Thor’s foot should be.

3. Draw a point where you think the Hulk’s foot should be.

4. Draw a point where you think the top of the Hulk’s head would be if he stood up straight.

5. Now, measure those heights, and use your answer to #1 to find an estimate for the Hulk’s height

6. Use your answer to #5, and all the tricks you learned to estimate the height of Iron Man’s Hulk-Buster suit:


 * 1) 1 Estimate how tall this (real) Optimus Prime statue in Beijing, China is:

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