Finding the Fourth Proportional to 288,960.62, 398,743.97 and 161,611.61
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Solution
The fourth proportional to 288,960.62, 398,743.97 and 161,611.61 is: 223,011.89
Step by Step Solution
- Step 1: Write the proportion equation
288,960.62 : 398,743.97 = 161,611.61 : x - Step 2: Convert to fraction form
288,960.62/398,743.97 = 161,611.61/x - Step 3: Cross multiply
288,960.62x = 398,743.97 × 161,611.61 - Step 4: Simplify right side
288,960.62x = 64,441,652,167.71 - Step 5: Solve for x
x = 64,441,652,167.71/288,960.62 - Step 6: Final answer
x = 223,011.89
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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.