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Finding the Fourth Proportional to 195.57, 269.31 and 169.30

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Solution

The fourth proportional to 195.57, 269.31 and 169.30 is: 233.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.57 : 269.31 = 169.30 : x
  2. Step 2: Convert to fraction form
    195.57/269.31 = 169.30/x
  3. Step 3: Cross multiply
    195.57x = 269.31 × 169.30
  4. Step 4: Simplify right side
    195.57x = 45,594.18
  5. Step 5: Solve for x
    x = 45,594.18/195.57
  6. Step 6: Final answer
    x = 233.13

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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.