Finding the Fourth Proportional to 316,306.53, 474,460.11 and 129,318.03
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Solution
The fourth proportional to 316,306.53, 474,460.11 and 129,318.03 is: 193,977.17
Step by Step Solution
- Step 1: Write the proportion equation
316,306.53 : 474,460.11 = 129,318.03 : x - Step 2: Convert to fraction form
316,306.53/474,460.11 = 129,318.03/x - Step 3: Cross multiply
316,306.53x = 474,460.11 × 129,318.03 - Step 4: Simplify right side
316,306.53x = 61,356,246,738.78 - Step 5: Solve for x
x = 61,356,246,738.78/316,306.53 - Step 6: Final answer
x = 193,977.17
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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.