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Finding the Fourth Proportional to 239,705.78, 330,794.94 and 132,278.91

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Solution

The fourth proportional to 239,705.78, 330,794.94 and 132,278.91 is: 182,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,705.78 : 330,794.94 = 132,278.91 : x
  2. Step 2: Convert to fraction form
    239,705.78/330,794.94 = 132,278.91/x
  3. Step 3: Cross multiply
    239,705.78x = 330,794.94 × 132,278.91
  4. Step 4: Simplify right side
    239,705.78x = 43,757,194,096.72
  5. Step 5: Solve for x
    x = 43,757,194,096.72/239,705.78
  6. Step 6: Final answer
    x = 182,545.43

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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.