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Finding the Fourth Proportional to 228,463.92, 315,280.17 and 127,861.92

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Solution

The fourth proportional to 228,463.92, 315,280.17 and 127,861.92 is: 176,449.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,463.92 : 315,280.17 = 127,861.92 : x
  2. Step 2: Convert to fraction form
    228,463.92/315,280.17 = 127,861.92/x
  3. Step 3: Cross multiply
    228,463.92x = 315,280.17 × 127,861.92
  4. Step 4: Simplify right side
    228,463.92x = 40,312,327,874.13
  5. Step 5: Solve for x
    x = 40,312,327,874.13/228,463.92
  6. Step 6: Final answer
    x = 176,449.43

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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.