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Finding the Fourth Proportional to 169.41, 252.36 and 164.31

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Solution

The fourth proportional to 169.41, 252.36 and 164.31 is: 244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.41 : 252.36 = 164.31 : x
  2. Step 2: Convert to fraction form
    169.41/252.36 = 164.31/x
  3. Step 3: Cross multiply
    169.41x = 252.36 × 164.31
  4. Step 4: Simplify right side
    169.41x = 41,465.27
  5. Step 5: Solve for x
    x = 41,465.27/169.41
  6. Step 6: Final answer
    x = 244.76

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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.