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Finding the Fourth Proportional to 372.22, 557.97 and 155.92

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Solution

The fourth proportional to 372.22, 557.97 and 155.92 is: 233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.22 : 557.97 = 155.92 : x
  2. Step 2: Convert to fraction form
    372.22/557.97 = 155.92/x
  3. Step 3: Cross multiply
    372.22x = 557.97 × 155.92
  4. Step 4: Simplify right side
    372.22x = 86,998.68
  5. Step 5: Solve for x
    x = 86,998.68/372.22
  6. Step 6: Final answer
    x = 233.73

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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.