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Finding the Fourth Proportional to 169.01, 252.01 and 168.79

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Solution

The fourth proportional to 169.01, 252.01 and 168.79 is: 251.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.01 : 252.01 = 168.79 : x
  2. Step 2: Convert to fraction form
    169.01/252.01 = 168.79/x
  3. Step 3: Cross multiply
    169.01x = 252.01 × 168.79
  4. Step 4: Simplify right side
    169.01x = 42,534.66
  5. Step 5: Solve for x
    x = 42,534.66/169.01
  6. Step 6: Final answer
    x = 251.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.