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Finding the Fourth Proportional to 326.29, 449.52 and 227.87

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Solution

The fourth proportional to 326.29, 449.52 and 227.87 is: 313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.29 : 449.52 = 227.87 : x
  2. Step 2: Convert to fraction form
    326.29/449.52 = 227.87/x
  3. Step 3: Cross multiply
    326.29x = 449.52 × 227.87
  4. Step 4: Simplify right side
    326.29x = 102,432.12
  5. Step 5: Solve for x
    x = 102,432.12/326.29
  6. Step 6: Final answer
    x = 313.93

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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.