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Finding the Fourth Proportional to 549.11, 757.35 and 352.28

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Solution

The fourth proportional to 549.11, 757.35 and 352.28 is: 485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.11 : 757.35 = 352.28 : x
  2. Step 2: Convert to fraction form
    549.11/757.35 = 352.28/x
  3. Step 3: Cross multiply
    549.11x = 757.35 × 352.28
  4. Step 4: Simplify right side
    549.11x = 266,801.15
  5. Step 5: Solve for x
    x = 266,801.15/549.11
  6. Step 6: Final answer
    x = 485.88

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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.