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Finding the Fourth Proportional to 240,355.73, 331,654.06 and 138,361.49

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Solution

The fourth proportional to 240,355.73, 331,654.06 and 138,361.49 is: 190,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,355.73 : 331,654.06 = 138,361.49 : x
  2. Step 2: Convert to fraction form
    240,355.73/331,654.06 = 138,361.49/x
  3. Step 3: Cross multiply
    240,355.73x = 331,654.06 × 138,361.49
  4. Step 4: Simplify right side
    240,355.73x = 45,888,149,120.90
  5. Step 5: Solve for x
    x = 45,888,149,120.90/240,355.73
  6. Step 6: Final answer
    x = 190,917.64

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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.