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Finding the Fourth Proportional to 230,986.88, 318,761.89 and 125,002.88

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Solution

The fourth proportional to 230,986.88, 318,761.89 and 125,002.88 is: 172,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,986.88 : 318,761.89 = 125,002.88 : x
  2. Step 2: Convert to fraction form
    230,986.88/318,761.89 = 125,002.88/x
  3. Step 3: Cross multiply
    230,986.88x = 318,761.89 × 125,002.88
  4. Step 4: Simplify right side
    230,986.88x = 39,846,152,377.93
  5. Step 5: Solve for x
    x = 39,846,152,377.93/230,986.88
  6. Step 6: Final answer
    x = 172,503.97

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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.