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Finding the Fourth Proportional to 231,466, 319,425 and 125,482

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Solution

The fourth proportional to 231,466, 319,425 and 125,482 is: 173,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,466 : 319,425 = 125,482 : x
  2. Step 2: Convert to fraction form
    231,466/319,425 = 125,482/x
  3. Step 3: Cross multiply
    231,466x = 319,425 × 125,482
  4. Step 4: Simplify right side
    231,466x = 40,082,087,850
  5. Step 5: Solve for x
    x = 40,082,087,850/231,466
  6. Step 6: Final answer
    x = 173,166.20

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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.