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Finding the Fourth Proportional to 339,072.30, 508,171.05 and 259,793.55

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Solution

The fourth proportional to 339,072.30, 508,171.05 and 259,793.55 is: 389,355.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,072.30 : 508,171.05 = 259,793.55 : x
  2. Step 2: Convert to fraction form
    339,072.30/508,171.05 = 259,793.55/x
  3. Step 3: Cross multiply
    339,072.30x = 508,171.05 × 259,793.55
  4. Step 4: Simplify right side
    339,072.30x = 132,019,561,086.73
  5. Step 5: Solve for x
    x = 132,019,561,086.73/339,072.30
  6. Step 6: Final answer
    x = 389,355.19

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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.