Finding the Fourth Proportional to 288,691.08, 398,394.16 and 161,366.56
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Solution
The fourth proportional to 288,691.08, 398,394.16 and 161,366.56 is: 222,686.12
Step by Step Solution
- Step 1: Write the proportion equation
288,691.08 : 398,394.16 = 161,366.56 : x - Step 2: Convert to fraction form
288,691.08/398,394.16 = 161,366.56/x - Step 3: Cross multiply
288,691.08x = 398,394.16 × 161,366.56 - Step 4: Simplify right side
288,691.08x = 64,287,495,123.29 - Step 5: Solve for x
x = 64,287,495,123.29/288,691.08 - Step 6: Final answer
x = 222,686.12
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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.