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Finding the Fourth Proportional to 252,109.92, 347,910.02 and 138,932.76

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Solution

The fourth proportional to 252,109.92, 347,910.02 and 138,932.76 is: 191,726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,109.92 : 347,910.02 = 138,932.76 : x
  2. Step 2: Convert to fraction form
    252,109.92/347,910.02 = 138,932.76/x
  3. Step 3: Cross multiply
    252,109.92x = 347,910.02 × 138,932.76
  4. Step 4: Simplify right side
    252,109.92x = 48,336,099,310.26
  5. Step 5: Solve for x
    x = 48,336,099,310.26/252,109.92
  6. Step 6: Final answer
    x = 191,726.29

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1.5x scale

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.