Finding the Fourth Proportional to 288,068.24, 431,964.05 and 136,138.88
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Solution
The fourth proportional to 288,068.24, 431,964.05 and 136,138.88 is: 204,142.96
Step by Step Solution
- Step 1: Write the proportion equation
288,068.24 : 431,964.05 = 136,138.88 : x - Step 2: Convert to fraction form
288,068.24/431,964.05 = 136,138.88/x - Step 3: Cross multiply
288,068.24x = 431,964.05 × 136,138.88 - Step 4: Simplify right side
288,068.24x = 58,807,102,366.48 - Step 5: Solve for x
x = 58,807,102,366.48/288,068.24 - Step 6: Final answer
x = 204,142.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.