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Finding the Fourth Proportional to 203,257.92, 280,555.20 and 131,635.20

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Solution

The fourth proportional to 203,257.92, 280,555.20 and 131,635.20 is: 181,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,257.92 : 280,555.20 = 131,635.20 : x
  2. Step 2: Convert to fraction form
    203,257.92/280,555.20 = 131,635.20/x
  3. Step 3: Cross multiply
    203,257.92x = 280,555.20 × 131,635.20
  4. Step 4: Simplify right side
    203,257.92x = 36,930,939,863.04
  5. Step 5: Solve for x
    x = 36,930,939,863.04/203,257.92
  6. Step 6: Final answer
    x = 181,694.96

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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.