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Finding the Fourth Proportional to 220,662.83, 304,520.61 and 125,183.88

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Solution

The fourth proportional to 220,662.83, 304,520.61 and 125,183.88 is: 172,757.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,662.83 : 304,520.61 = 125,183.88 : x
  2. Step 2: Convert to fraction form
    220,662.83/304,520.61 = 125,183.88/x
  3. Step 3: Cross multiply
    220,662.83x = 304,520.61 × 125,183.88
  4. Step 4: Simplify right side
    220,662.83x = 38,121,071,969.21
  5. Step 5: Solve for x
    x = 38,121,071,969.21/220,662.83
  6. Step 6: Final answer
    x = 172,757.10

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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.