Finding the Fourth Proportional to 493,257.05, 739,830.90 and 138,306.95
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Solution
The fourth proportional to 493,257.05, 739,830.90 and 138,306.95 is: 207,445.09
Step by Step Solution
- Step 1: Write the proportion equation
493,257.05 : 739,830.90 = 138,306.95 : x - Step 2: Convert to fraction form
493,257.05/739,830.90 = 138,306.95/x - Step 3: Cross multiply
493,257.05x = 739,830.90 × 138,306.95 - Step 4: Simplify right side
493,257.05x = 102,323,755,294.76 - Step 5: Solve for x
x = 102,323,755,294.76/493,257.05 - Step 6: Final answer
x = 207,445.09
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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.