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Finding the Fourth Proportional to 195.39, 269.26 and 155.92

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Solution

The fourth proportional to 195.39, 269.26 and 155.92 is: 214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.39 : 269.26 = 155.92 : x
  2. Step 2: Convert to fraction form
    195.39/269.26 = 155.92/x
  3. Step 3: Cross multiply
    195.39x = 269.26 × 155.92
  4. Step 4: Simplify right side
    195.39x = 41,983.02
  5. Step 5: Solve for x
    x = 41,983.02/195.39
  6. Step 6: Final answer
    x = 214.87

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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.