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Finding the Fourth Proportional to 549.24, 757.96 and 300.57

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Solution

The fourth proportional to 549.24, 757.96 and 300.57 is: 414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.24 : 757.96 = 300.57 : x
  2. Step 2: Convert to fraction form
    549.24/757.96 = 300.57/x
  3. Step 3: Cross multiply
    549.24x = 757.96 × 300.57
  4. Step 4: Simplify right side
    549.24x = 227,820.04
  5. Step 5: Solve for x
    x = 227,820.04/549.24
  6. Step 6: Final answer
    x = 414.79

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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.