Finding the Fourth Proportional to 478,984.20, 718,476.18 and 163,441.08
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Solution
The fourth proportional to 478,984.20, 718,476.18 and 163,441.08 is: 245,161.58
Step by Step Solution
- Step 1: Write the proportion equation
478,984.20 : 718,476.18 = 163,441.08 : x - Step 2: Convert to fraction form
478,984.20/718,476.18 = 163,441.08/x - Step 3: Cross multiply
478,984.20x = 718,476.18 × 163,441.08 - Step 4: Simplify right side
478,984.20x = 117,428,522,813.47 - Step 5: Solve for x
x = 117,428,522,813.47/478,984.20 - Step 6: Final answer
x = 245,161.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.