Finding the Fourth Proportional to 250,713.20, 375,716.21 and 138,443.96
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Solution
The fourth proportional to 250,713.20, 375,716.21 and 138,443.96 is: 207,470.69
Step by Step Solution
- Step 1: Write the proportion equation
250,713.20 : 375,716.21 = 138,443.96 : x - Step 2: Convert to fraction form
250,713.20/375,716.21 = 138,443.96/x - Step 3: Cross multiply
250,713.20x = 375,716.21 × 138,443.96 - Step 4: Simplify right side
250,713.20x = 52,015,640,195.66 - Step 5: Solve for x
x = 52,015,640,195.66/250,713.20 - Step 6: Final answer
x = 207,470.69
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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.