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Finding the Fourth Proportional to 224,649.30, 309,489.17 and 156,542.68

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Solution

The fourth proportional to 224,649.30, 309,489.17 and 156,542.68 is: 215,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,649.30 : 309,489.17 = 156,542.68 : x
  2. Step 2: Convert to fraction form
    224,649.30/309,489.17 = 156,542.68/x
  3. Step 3: Cross multiply
    224,649.30x = 309,489.17 × 156,542.68
  4. Step 4: Simplify right side
    224,649.30x = 48,448,264,102.78
  5. Step 5: Solve for x
    x = 48,448,264,102.78/224,649.30
  6. Step 6: Final answer
    x = 215,661.76

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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.