Finding the Fourth Proportional to 288,760.13, 431,025.21 and 254,672.09
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Solution
The fourth proportional to 288,760.13, 431,025.21 and 254,672.09 is: 380,142.82
Step by Step Solution
- Step 1: Write the proportion equation
288,760.13 : 431,025.21 = 254,672.09 : x - Step 2: Convert to fraction form
288,760.13/431,025.21 = 254,672.09/x - Step 3: Cross multiply
288,760.13x = 431,025.21 × 254,672.09 - Step 4: Simplify right side
288,760.13x = 109,770,091,195.93 - Step 5: Solve for x
x = 109,770,091,195.93/288,760.13 - Step 6: Final answer
x = 380,142.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.