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Finding the Fourth Proportional to 240,793.12, 332,291.14 and 138,818.78

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Solution

The fourth proportional to 240,793.12, 332,291.14 and 138,818.78 is: 191,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,793.12 : 332,291.14 = 138,818.78 : x
  2. Step 2: Convert to fraction form
    240,793.12/332,291.14 = 138,818.78/x
  3. Step 3: Cross multiply
    240,793.12x = 332,291.14 × 138,818.78
  4. Step 4: Simplify right side
    240,793.12x = 46,128,250,659.61
  5. Step 5: Solve for x
    x = 46,128,250,659.61/240,793.12
  6. Step 6: Final answer
    x = 191,567.98

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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.