Finding the Fourth Proportional to 288,732.31, 433,145.17 and 89,005.99
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Solution
The fourth proportional to 288,732.31, 433,145.17 and 89,005.99 is: 133,523.38
Step by Step Solution
- Step 1: Write the proportion equation
288,732.31 : 433,145.17 = 89,005.99 : x - Step 2: Convert to fraction form
288,732.31/433,145.17 = 89,005.99/x - Step 3: Cross multiply
288,732.31x = 433,145.17 × 89,005.99 - Step 4: Simplify right side
288,732.31x = 38,552,514,106.48 - Step 5: Solve for x
x = 38,552,514,106.48/288,732.31 - Step 6: Final answer
x = 133,523.38
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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.