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Finding the Fourth Proportional to 227.38, 340.79 and 97.23

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Solution

The fourth proportional to 227.38, 340.79 and 97.23 is: 145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.38 : 340.79 = 97.23 : x
  2. Step 2: Convert to fraction form
    227.38/340.79 = 97.23/x
  3. Step 3: Cross multiply
    227.38x = 340.79 × 97.23
  4. Step 4: Simplify right side
    227.38x = 33,135.50
  5. Step 5: Solve for x
    x = 33,135.50/227.38
  6. Step 6: Final answer
    x = 145.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.