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Finding the Fourth Proportional to 228,375.65, 315,132.10 and 131,593.61

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Solution

The fourth proportional to 228,375.65, 315,132.10 and 131,593.61 is: 181,584.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,375.65 : 315,132.10 = 131,593.61 : x
  2. Step 2: Convert to fraction form
    228,375.65/315,132.10 = 131,593.61/x
  3. Step 3: Cross multiply
    228,375.65x = 315,132.10 × 131,593.61
  4. Step 4: Simplify right side
    228,375.65x = 41,469,368,761.24
  5. Step 5: Solve for x
    x = 41,469,368,761.24/228,375.65
  6. Step 6: Final answer
    x = 181,584.02

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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.