Finding the Fourth Proportional to 279,920.96, 385,553.76 and 232,020.80
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Solution
The fourth proportional to 279,920.96, 385,553.76 and 232,020.80 is: 319,577.68
Step by Step Solution
- Step 1: Write the proportion equation
279,920.96 : 385,553.76 = 232,020.80 : x - Step 2: Convert to fraction form
279,920.96/385,553.76 = 232,020.80/x - Step 3: Cross multiply
279,920.96x = 385,553.76 × 232,020.80 - Step 4: Simplify right side
279,920.96x = 89,456,491,838.21 - Step 5: Solve for x
x = 89,456,491,838.21/279,920.96 - Step 6: Final answer
x = 319,577.68
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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.