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Finding the Fourth Proportional to 309,229.92, 463,849.20 and 87,613.92

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Solution

The fourth proportional to 309,229.92, 463,849.20 and 87,613.92 is: 131,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,229.92 : 463,849.20 = 87,613.92 : x
  2. Step 2: Convert to fraction form
    309,229.92/463,849.20 = 87,613.92/x
  3. Step 3: Cross multiply
    309,229.92x = 463,849.20 × 87,613.92
  4. Step 4: Simplify right side
    309,229.92x = 40,639,646,700.86
  5. Step 5: Solve for x
    x = 40,639,646,700.86/309,229.92
  6. Step 6: Final answer
    x = 131,422.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.