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Finding the Fourth Proportional to 227.18, 338.94 and 225.56

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Solution

The fourth proportional to 227.18, 338.94 and 225.56 is: 336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.18 : 338.94 = 225.56 : x
  2. Step 2: Convert to fraction form
    227.18/338.94 = 225.56/x
  3. Step 3: Cross multiply
    227.18x = 338.94 × 225.56
  4. Step 4: Simplify right side
    227.18x = 76,451.31
  5. Step 5: Solve for x
    x = 76,451.31/227.18
  6. Step 6: Final answer
    x = 336.52

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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.