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Finding the Fourth Proportional to 167.00, 230.39 and 104.78

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Solution

The fourth proportional to 167.00, 230.39 and 104.78 is: 144.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.00 : 230.39 = 104.78 : x
  2. Step 2: Convert to fraction form
    167.00/230.39 = 104.78/x
  3. Step 3: Cross multiply
    167.00x = 230.39 × 104.78
  4. Step 4: Simplify right side
    167.00x = 24,140.26
  5. Step 5: Solve for x
    x = 24,140.26/167.00
  6. Step 6: Final answer
    x = 144.56

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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.