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Finding the Fourth Proportional to 225.52, 337.82 and 103.61

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Solution

The fourth proportional to 225.52, 337.82 and 103.61 is: 155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.52 : 337.82 = 103.61 : x
  2. Step 2: Convert to fraction form
    225.52/337.82 = 103.61/x
  3. Step 3: Cross multiply
    225.52x = 337.82 × 103.61
  4. Step 4: Simplify right side
    225.52x = 35,002.63
  5. Step 5: Solve for x
    x = 35,002.63/225.52
  6. Step 6: Final answer
    x = 155.21

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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.