Finding the Fourth Proportional to 288,713.06, 398,432.84 and 161,394.02
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Solution
The fourth proportional to 288,713.06, 398,432.84 and 161,394.02 is: 222,728.68
Step by Step Solution
- Step 1: Write the proportion equation
288,713.06 : 398,432.84 = 161,394.02 : x - Step 2: Convert to fraction form
288,713.06/398,432.84 = 161,394.02/x - Step 3: Cross multiply
288,713.06x = 398,432.84 × 161,394.02 - Step 4: Simplify right side
288,713.06x = 64,304,677,747.62 - Step 5: Solve for x
x = 64,304,677,747.62/288,713.06 - Step 6: Final answer
x = 222,728.68
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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.