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Finding the Fourth Proportional to 367.31, 506.67 and 227.31

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Solution

The fourth proportional to 367.31, 506.67 and 227.31 is: 313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.31 : 506.67 = 227.31 : x
  2. Step 2: Convert to fraction form
    367.31/506.67 = 227.31/x
  3. Step 3: Cross multiply
    367.31x = 506.67 × 227.31
  4. Step 4: Simplify right side
    367.31x = 115,171.16
  5. Step 5: Solve for x
    x = 115,171.16/367.31
  6. Step 6: Final answer
    x = 313.55

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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.