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Finding the Fourth Proportional to 192.89, 266.33 and 169.85

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Solution

The fourth proportional to 192.89, 266.33 and 169.85 is: 234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.89 : 266.33 = 169.85 : x
  2. Step 2: Convert to fraction form
    192.89/266.33 = 169.85/x
  3. Step 3: Cross multiply
    192.89x = 266.33 × 169.85
  4. Step 4: Simplify right side
    192.89x = 45,233.97
  5. Step 5: Solve for x
    x = 45,233.97/192.89
  6. Step 6: Final answer
    x = 234.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.