Finding the Fourth Proportional to 386,006.95, 578,812.92 and 161,306.02
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Solution
The fourth proportional to 386,006.95, 578,812.92 and 161,306.02 is: 241,876.50
Step by Step Solution
- Step 1: Write the proportion equation
386,006.95 : 578,812.92 = 161,306.02 : x - Step 2: Convert to fraction form
386,006.95/578,812.92 = 161,306.02/x - Step 3: Cross multiply
386,006.95x = 578,812.92 × 161,306.02 - Step 4: Simplify right side
386,006.95x = 93,366,008,449.78 - Step 5: Solve for x
x = 93,366,008,449.78/386,006.95 - Step 6: Final answer
x = 241,876.50
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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.