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Finding the Fourth Proportional to 225.26, 338.03 and 148.38

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Solution

The fourth proportional to 225.26, 338.03 and 148.38 is: 222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.26 : 338.03 = 148.38 : x
  2. Step 2: Convert to fraction form
    225.26/338.03 = 148.38/x
  3. Step 3: Cross multiply
    225.26x = 338.03 × 148.38
  4. Step 4: Simplify right side
    225.26x = 50,155.44
  5. Step 5: Solve for x
    x = 50,155.44/225.26
  6. Step 6: Final answer
    x = 222.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.