Finding the Fourth Proportional to 258,520.26, 388,143.69 and 132,251.08
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Solution
The fourth proportional to 258,520.26, 388,143.69 and 132,251.08 is: 198,562.47
Step by Step Solution
- Step 1: Write the proportion equation
258,520.26 : 388,143.69 = 132,251.08 : x - Step 2: Convert to fraction form
258,520.26/388,143.69 = 132,251.08/x - Step 3: Cross multiply
258,520.26x = 388,143.69 × 132,251.08 - Step 4: Simplify right side
258,520.26x = 51,332,420,256.97 - Step 5: Solve for x
x = 51,332,420,256.97/258,520.26 - Step 6: Final answer
x = 198,562.47
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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.