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Finding the Fourth Proportional to 227.33, 313.78 and 134.11

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Solution

The fourth proportional to 227.33, 313.78 and 134.11 is: 185.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.33 : 313.78 = 134.11 : x
  2. Step 2: Convert to fraction form
    227.33/313.78 = 134.11/x
  3. Step 3: Cross multiply
    227.33x = 313.78 × 134.11
  4. Step 4: Simplify right side
    227.33x = 42,081.04
  5. Step 5: Solve for x
    x = 42,081.04/227.33
  6. Step 6: Final answer
    x = 185.11

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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.