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Finding the Fourth Proportional to 226.64, 338.59 and 148.97

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Solution

The fourth proportional to 226.64, 338.59 and 148.97 is: 222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.64 : 338.59 = 148.97 : x
  2. Step 2: Convert to fraction form
    226.64/338.59 = 148.97/x
  3. Step 3: Cross multiply
    226.64x = 338.59 × 148.97
  4. Step 4: Simplify right side
    226.64x = 50,439.75
  5. Step 5: Solve for x
    x = 50,439.75/226.64
  6. Step 6: Final answer
    x = 222.55

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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.