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Finding the Fourth Proportional to 226.90, 313.97 and 193.65

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Solution

The fourth proportional to 226.90, 313.97 and 193.65 is: 267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.90 : 313.97 = 193.65 : x
  2. Step 2: Convert to fraction form
    226.90/313.97 = 193.65/x
  3. Step 3: Cross multiply
    226.90x = 313.97 × 193.65
  4. Step 4: Simplify right side
    226.90x = 60,800.29
  5. Step 5: Solve for x
    x = 60,800.29/226.90
  6. Step 6: Final answer
    x = 267.97

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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.