Finding the Fourth Proportional to 263,542.70, 363,691.86 and 142,686.62
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Solution
The fourth proportional to 263,542.70, 363,691.86 and 142,686.62 is: 196,909.12
Step by Step Solution
- Step 1: Write the proportion equation
263,542.70 : 363,691.86 = 142,686.62 : x - Step 2: Convert to fraction form
263,542.70/363,691.86 = 142,686.62/x - Step 3: Cross multiply
263,542.70x = 363,691.86 × 142,686.62 - Step 4: Simplify right side
263,542.70x = 51,893,962,224.91 - Step 5: Solve for x
x = 51,893,962,224.91/263,542.70 - Step 6: Final answer
x = 196,909.12
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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.