Finding the Fourth Proportional to 318,658.62, 439,761.42 and 175,431.99
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Solution
The fourth proportional to 318,658.62, 439,761.42 and 175,431.99 is: 242,103.04
Step by Step Solution
- Step 1: Write the proportion equation
318,658.62 : 439,761.42 = 175,431.99 : x - Step 2: Convert to fraction form
318,658.62/439,761.42 = 175,431.99/x - Step 3: Cross multiply
318,658.62x = 439,761.42 × 175,431.99 - Step 4: Simplify right side
318,658.62x = 77,148,221,035.83 - Step 5: Solve for x
x = 77,148,221,035.83/318,658.62 - Step 6: Final answer
x = 242,103.04
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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.