An automobile uses 8 gallons in traveling 120 miles at that rate how many gallons will be used in 360 miles?

120 / 8 = 15 mpg

360 / 15 = _______ gallons

To calculate the number of gallons used in traveling 360 miles at the same rate, you can set up a proportion using the information provided.

The proportion can be set up as follows:

8 gallons : 120 miles = x gallons : 360 miles

To find the value of x (the unknown number of gallons used in traveling 360 miles), you need to solve this proportion.

To solve the proportion, you can cross-multiply and then divide:

8 * 360 = 120 * x

2880 = 120 * x

Next, divide both sides of the equation by 120:

2880 / 120 = x

x = 24

Therefore, in traveling 360 miles at the same rate, the automobile will use 24 gallons.