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Finding the Fourth Proportional to 331,266.48, 457,149.90 and 188,028.90

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Solution

The fourth proportional to 331,266.48, 457,149.90 and 188,028.90 is: 259,481.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,266.48 : 457,149.90 = 188,028.90 : x
  2. Step 2: Convert to fraction form
    331,266.48/457,149.90 = 188,028.90/x
  3. Step 3: Cross multiply
    331,266.48x = 457,149.90 × 188,028.90
  4. Step 4: Simplify right side
    331,266.48x = 85,957,392,832.11
  5. Step 5: Solve for x
    x = 85,957,392,832.11/331,266.48
  6. Step 6: Final answer
    x = 259,481.11

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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.