Finding the Fourth Proportional to 354,508.95, 489,461.91 and 272,691.92
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Solution
The fourth proportional to 354,508.95, 489,461.91 and 272,691.92 is: 376,499.12
Step by Step Solution
- Step 1: Write the proportion equation
354,508.95 : 489,461.91 = 272,691.92 : x - Step 2: Convert to fraction form
354,508.95/489,461.91 = 272,691.92/x - Step 3: Cross multiply
354,508.95x = 489,461.91 × 272,691.92 - Step 4: Simplify right side
354,508.95x = 133,472,307,753.44 - Step 5: Solve for x
x = 133,472,307,753.44/354,508.95 - Step 6: Final answer
x = 376,499.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.