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Finding the Fourth Proportional to 239,853.78, 330,998.72 and 132,424.02

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Solution

The fourth proportional to 239,853.78, 330,998.72 and 132,424.02 is: 182,745.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,853.78 : 330,998.72 = 132,424.02 : x
  2. Step 2: Convert to fraction form
    239,853.78/330,998.72 = 132,424.02/x
  3. Step 3: Cross multiply
    239,853.78x = 330,998.72 × 132,424.02
  4. Step 4: Simplify right side
    239,853.78x = 43,832,181,117.25
  5. Step 5: Solve for x
    x = 43,832,181,117.25/239,853.78
  6. Step 6: Final answer
    x = 182,745.43

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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.