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Finding the Fourth Proportional to 234,149.68, 323,126.56 and 126,720.48

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Solution

The fourth proportional to 234,149.68, 323,126.56 and 126,720.48 is: 174,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,149.68 : 323,126.56 = 126,720.48 : x
  2. Step 2: Convert to fraction form
    234,149.68/323,126.56 = 126,720.48/x
  3. Step 3: Cross multiply
    234,149.68x = 323,126.56 × 126,720.48
  4. Step 4: Simplify right side
    234,149.68x = 40,946,752,783.95
  5. Step 5: Solve for x
    x = 40,946,752,783.95/234,149.68
  6. Step 6: Final answer
    x = 174,874.26

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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.