Finding the Fourth Proportional to 288,536.59, 398,201.11 and 159,472.28
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Solution
The fourth proportional to 288,536.59, 398,201.11 and 159,472.28 is: 220,083.15
Step by Step Solution
- Step 1: Write the proportion equation
288,536.59 : 398,201.11 = 159,472.28 : x - Step 2: Convert to fraction form
288,536.59/398,201.11 = 159,472.28/x - Step 3: Cross multiply
288,536.59x = 398,201.11 × 159,472.28 - Step 4: Simplify right side
288,536.59x = 63,502,039,507.05 - Step 5: Solve for x
x = 63,502,039,507.05/288,536.59 - Step 6: Final answer
x = 220,083.15
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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.