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Finding the Fourth Proportional to 227.61, 339.39 and 224.78

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Solution

The fourth proportional to 227.61, 339.39 and 224.78 is: 335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.61 : 339.39 = 224.78 : x
  2. Step 2: Convert to fraction form
    227.61/339.39 = 224.78/x
  3. Step 3: Cross multiply
    227.61x = 339.39 × 224.78
  4. Step 4: Simplify right side
    227.61x = 76,286.39
  5. Step 5: Solve for x
    x = 76,286.39/227.61
  6. Step 6: Final answer
    x = 335.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.