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Finding the Fourth Proportional to 220,462.77, 304,229.75 and 129,822.55

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Solution

The fourth proportional to 220,462.77, 304,229.75 and 129,822.55 is: 179,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,462.77 : 304,229.75 = 129,822.55 : x
  2. Step 2: Convert to fraction form
    220,462.77/304,229.75 = 129,822.55/x
  3. Step 3: Cross multiply
    220,462.77x = 304,229.75 × 129,822.55
  4. Step 4: Simplify right side
    220,462.77x = 39,495,881,930.86
  5. Step 5: Solve for x
    x = 39,495,881,930.86/220,462.77
  6. Step 6: Final answer
    x = 179,149.90

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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.