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Finding the Fourth Proportional to 549.18, 757.42 and 362.70

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Solution

The fourth proportional to 549.18, 757.42 and 362.70 is: 500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.18 : 757.42 = 362.70 : x
  2. Step 2: Convert to fraction form
    549.18/757.42 = 362.70/x
  3. Step 3: Cross multiply
    549.18x = 757.42 × 362.70
  4. Step 4: Simplify right side
    549.18x = 274,716.23
  5. Step 5: Solve for x
    x = 274,716.23/549.18
  6. Step 6: Final answer
    x = 500.23

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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.