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Finding the Fourth Proportional to 240,932.78, 332,481.71 and 138,958.44

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Solution

The fourth proportional to 240,932.78, 332,481.71 and 138,958.44 is: 191,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,932.78 : 332,481.71 = 138,958.44 : x
  2. Step 2: Convert to fraction form
    240,932.78/332,481.71 = 138,958.44/x
  3. Step 3: Cross multiply
    240,932.78x = 332,481.71 × 138,958.44
  4. Step 4: Simplify right side
    240,932.78x = 46,201,138,850.72
  5. Step 5: Solve for x
    x = 46,201,138,850.72/240,932.78
  6. Step 6: Final answer
    x = 191,759.46

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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.