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Finding the Fourth Proportional to 326.28, 449.79 and 232.86

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Solution

The fourth proportional to 326.28, 449.79 and 232.86 is: 321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.28 : 449.79 = 232.86 : x
  2. Step 2: Convert to fraction form
    326.28/449.79 = 232.86/x
  3. Step 3: Cross multiply
    326.28x = 449.79 × 232.86
  4. Step 4: Simplify right side
    326.28x = 104,738.10
  5. Step 5: Solve for x
    x = 104,738.10/326.28
  6. Step 6: Final answer
    x = 321.01

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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.