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Finding the Fourth Proportional to 267.92, 370.31 and 194.75

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Solution

The fourth proportional to 267.92, 370.31 and 194.75 is: 269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.92 : 370.31 = 194.75 : x
  2. Step 2: Convert to fraction form
    267.92/370.31 = 194.75/x
  3. Step 3: Cross multiply
    267.92x = 370.31 × 194.75
  4. Step 4: Simplify right side
    267.92x = 72,115.05
  5. Step 5: Solve for x
    x = 72,115.05/267.92
  6. Step 6: Final answer
    x = 269.17

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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.