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Finding the Fourth Proportional to 239,169.78, 330,042.12 and 131,737.50

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Solution

The fourth proportional to 239,169.78, 330,042.12 and 131,737.50 is: 181,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,169.78 : 330,042.12 = 131,737.50 : x
  2. Step 2: Convert to fraction form
    239,169.78/330,042.12 = 131,737.50/x
  3. Step 3: Cross multiply
    239,169.78x = 330,042.12 × 131,737.50
  4. Step 4: Simplify right side
    239,169.78x = 43,478,923,783.50
  5. Step 5: Solve for x
    x = 43,478,923,783.50/239,169.78
  6. Step 6: Final answer
    x = 181,791.04

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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.