How do I answer this word math problem

Question

The number of calories you burn depends on your weight. A 170?-pound
person burns 116
calories during 30 minutes of bowling.
Find the number of calories that a 240?-pound
person would burn during the same? activity, assuming they burn calories at the same rate.


How many calories would a 240?-pound
person? burn?

Answer 1

We both know they would probbly not burn calories at the same rate, but assuming they do, we will set up a ratio.  170b/116 cal = 240 lb / x cal      cross multiply and solve for x

170 *x = 116 * 240