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Finding the Fourth Proportional to 239,374.59, 330,321.92 and 131,938.71

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Solution

The fourth proportional to 239,374.59, 330,321.92 and 131,938.71 is: 182,067.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,374.59 : 330,321.92 = 131,938.71 : x
  2. Step 2: Convert to fraction form
    239,374.59/330,321.92 = 131,938.71/x
  3. Step 3: Cross multiply
    239,374.59x = 330,321.92 × 131,938.71
  4. Step 4: Simplify right side
    239,374.59x = 43,582,247,349.83
  5. Step 5: Solve for x
    x = 43,582,247,349.83/239,374.59
  6. Step 6: Final answer
    x = 182,067.14

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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.