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Finding the Fourth Proportional to 250,689, 345,950.82 and 137,512.02

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Solution

The fourth proportional to 250,689, 345,950.82 and 137,512.02 is: 189,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,689 : 345,950.82 = 137,512.02 : x
  2. Step 2: Convert to fraction form
    250,689/345,950.82 = 137,512.02/x
  3. Step 3: Cross multiply
    250,689x = 345,950.82 × 137,512.02
  4. Step 4: Simplify right side
    250,689x = 47,572,396,078.86
  5. Step 5: Solve for x
    x = 47,572,396,078.86/250,689
  6. Step 6: Final answer
    x = 189,766.59

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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.