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Finding the Fourth Proportional to 235.56, 351.41 and 227.15

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Solution

The fourth proportional to 235.56, 351.41 and 227.15 is: 338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.56 : 351.41 = 227.15 : x
  2. Step 2: Convert to fraction form
    235.56/351.41 = 227.15/x
  3. Step 3: Cross multiply
    235.56x = 351.41 × 227.15
  4. Step 4: Simplify right side
    235.56x = 79,822.78
  5. Step 5: Solve for x
    x = 79,822.78/235.56
  6. Step 6: Final answer
    x = 338.86

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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.