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Finding the Fourth Proportional to 193.82, 266.89 and 167.55

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Solution

The fourth proportional to 193.82, 266.89 and 167.55 is: 230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.82 : 266.89 = 167.55 : x
  2. Step 2: Convert to fraction form
    193.82/266.89 = 167.55/x
  3. Step 3: Cross multiply
    193.82x = 266.89 × 167.55
  4. Step 4: Simplify right side
    193.82x = 44,716.75
  5. Step 5: Solve for x
    x = 44,716.75/193.82
  6. Step 6: Final answer
    x = 230.71

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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.