Finding the Fourth Proportional to 279,921.26, 386,252.38 and 165,204.70
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Solution
The fourth proportional to 279,921.26, 386,252.38 and 165,204.70 is: 227,959.49
Step by Step Solution
- Step 1: Write the proportion equation
279,921.26 : 386,252.38 = 165,204.70 : x - Step 2: Convert to fraction form
279,921.26/386,252.38 = 165,204.70/x - Step 3: Cross multiply
279,921.26x = 386,252.38 × 165,204.70 - Step 4: Simplify right side
279,921.26x = 63,810,708,562.19 - Step 5: Solve for x
x = 63,810,708,562.19/279,921.26 - Step 6: Final answer
x = 227,959.49
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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.