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Finding the Fourth Proportional to 167.33, 230.78 and 108.32

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Solution

The fourth proportional to 167.33, 230.78 and 108.32 is: 149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.33 : 230.78 = 108.32 : x
  2. Step 2: Convert to fraction form
    167.33/230.78 = 108.32/x
  3. Step 3: Cross multiply
    167.33x = 230.78 × 108.32
  4. Step 4: Simplify right side
    167.33x = 24,997.21
  5. Step 5: Solve for x
    x = 24,997.21/167.33
  6. Step 6: Final answer
    x = 149.39

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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.