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Finding the Fourth Proportional to 231,304, 319,199.52 and 125,320

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Solution

The fourth proportional to 231,304, 319,199.52 and 125,320 is: 172,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,304 : 319,199.52 = 125,320 : x
  2. Step 2: Convert to fraction form
    231,304/319,199.52 = 125,320/x
  3. Step 3: Cross multiply
    231,304x = 319,199.52 × 125,320
  4. Step 4: Simplify right side
    231,304x = 40,002,083,846.40
  5. Step 5: Solve for x
    x = 40,002,083,846.40/231,304
  6. Step 6: Final answer
    x = 172,941.60

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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.