Finding the Fourth Proportional to 319,691.87, 441,143.35 and 176,442.68
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Solution
The fourth proportional to 319,691.87, 441,143.35 and 176,442.68 is: 243,473.55
Step by Step Solution
- Step 1: Write the proportion equation
319,691.87 : 441,143.35 = 176,442.68 : x - Step 2: Convert to fraction form
319,691.87/441,143.35 = 176,442.68/x - Step 3: Cross multiply
319,691.87x = 441,143.35 × 176,442.68 - Step 4: Simplify right side
319,691.87x = 77,836,514,607.30 - Step 5: Solve for x
x = 77,836,514,607.30/319,691.87 - Step 6: Final answer
x = 243,473.55
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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.