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Finding the Fourth Proportional to 169.85, 234.27 and 104.37

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Solution

The fourth proportional to 169.85, 234.27 and 104.37 is: 143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.85 : 234.27 = 104.37 : x
  2. Step 2: Convert to fraction form
    169.85/234.27 = 104.37/x
  3. Step 3: Cross multiply
    169.85x = 234.27 × 104.37
  4. Step 4: Simplify right side
    169.85x = 24,450.76
  5. Step 5: Solve for x
    x = 24,450.76/169.85
  6. Step 6: Final answer
    x = 143.96

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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.