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Finding the Fourth Proportional to 549.22, 757.92 and 325.16

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Solution

The fourth proportional to 549.22, 757.92 and 325.16 is: 448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.22 : 757.92 = 325.16 : x
  2. Step 2: Convert to fraction form
    549.22/757.92 = 325.16/x
  3. Step 3: Cross multiply
    549.22x = 757.92 × 325.16
  4. Step 4: Simplify right side
    549.22x = 246,441.48
  5. Step 5: Solve for x
    x = 246,441.48/549.22
  6. Step 6: Final answer
    x = 448.71

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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.