Finding the Fourth Proportional to 279,959.61, 386,343.99 and 152,635.17
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Solution
The fourth proportional to 279,959.61, 386,343.99 and 152,635.17 is: 210,636.39
Step by Step Solution
- Step 1: Write the proportion equation
279,959.61 : 386,343.99 = 152,635.17 : x - Step 2: Convert to fraction form
279,959.61/386,343.99 = 152,635.17/x - Step 3: Cross multiply
279,959.61x = 386,343.99 × 152,635.17 - Step 4: Simplify right side
279,959.61x = 58,969,680,592.13 - Step 5: Solve for x
x = 58,969,680,592.13/279,959.61 - Step 6: Final answer
x = 210,636.39
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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.