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Finding the Fourth Proportional to 244.57, 338.87 and 239.39

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Solution

The fourth proportional to 244.57, 338.87 and 239.39 is: 331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.57 : 338.87 = 239.39 : x
  2. Step 2: Convert to fraction form
    244.57/338.87 = 239.39/x
  3. Step 3: Cross multiply
    244.57x = 338.87 × 239.39
  4. Step 4: Simplify right side
    244.57x = 81,120.99
  5. Step 5: Solve for x
    x = 81,120.99/244.57
  6. Step 6: Final answer
    x = 331.69

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.