Home / 239,204.29-330,079.20-137,238.15

Finding the Fourth Proportional to 239,204.29, 330,079.20 and 137,238.15

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Solution

The fourth proportional to 239,204.29, 330,079.20 and 137,238.15 is: 189,375.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,204.29 : 330,079.20 = 137,238.15 : x
  2. Step 2: Convert to fraction form
    239,204.29/330,079.20 = 137,238.15/x
  3. Step 3: Cross multiply
    239,204.29x = 330,079.20 × 137,238.15
  4. Step 4: Simplify right side
    239,204.29x = 45,299,458,399.90
  5. Step 5: Solve for x
    x = 45,299,458,399.90/239,204.29
  6. Step 6: Final answer
    x = 189,375.61

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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.