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Finding the Fourth Proportional to 546.96, 754.68 and 326

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Solution

The fourth proportional to 546.96, 754.68 and 326 is: 449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.96 : 754.68 = 326 : x
  2. Step 2: Convert to fraction form
    546.96/754.68 = 326/x
  3. Step 3: Cross multiply
    546.96x = 754.68 × 326
  4. Step 4: Simplify right side
    546.96x = 246,025.68
  5. Step 5: Solve for x
    x = 246,025.68/546.96
  6. Step 6: Final answer
    x = 449.81

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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.