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Finding the Fourth Proportional to 220,348.92, 329,719.86 and 203,621.88

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Solution

The fourth proportional to 220,348.92, 329,719.86 and 203,621.88 is: 304,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,348.92 : 329,719.86 = 203,621.88 : x
  2. Step 2: Convert to fraction form
    220,348.92/329,719.86 = 203,621.88/x
  3. Step 3: Cross multiply
    220,348.92x = 329,719.86 × 203,621.88
  4. Step 4: Simplify right side
    220,348.92x = 67,138,177,766.54
  5. Step 5: Solve for x
    x = 67,138,177,766.54/220,348.92
  6. Step 6: Final answer
    x = 304,690.30

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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.