Finding the Fourth Proportional to 319,414.57, 479,187.98 and 129,874.96
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Solution
The fourth proportional to 319,414.57, 479,187.98 and 129,874.96 is: 194,839.32
Step by Step Solution
- Step 1: Write the proportion equation
319,414.57 : 479,187.98 = 129,874.96 : x - Step 2: Convert to fraction form
319,414.57/479,187.98 = 129,874.96/x - Step 3: Cross multiply
319,414.57x = 479,187.98 × 129,874.96 - Step 4: Simplify right side
319,414.57x = 62,234,516,689.67 - Step 5: Solve for x
x = 62,234,516,689.67/319,414.57 - Step 6: Final answer
x = 194,839.32
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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.