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Finding the Fourth Proportional to 239,657.60, 330,729.32 and 132,231.56

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Solution

The fourth proportional to 239,657.60, 330,729.32 and 132,231.56 is: 182,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,657.60 : 330,729.32 = 132,231.56 : x
  2. Step 2: Convert to fraction form
    239,657.60/330,729.32 = 132,231.56/x
  3. Step 3: Cross multiply
    239,657.60x = 330,729.32 × 132,231.56
  4. Step 4: Simplify right side
    239,657.60x = 43,732,853,921.34
  5. Step 5: Solve for x
    x = 43,732,853,921.34/239,657.60
  6. Step 6: Final answer
    x = 182,480.56

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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.