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Finding the Fourth Proportional to 549.93, 758.86 and 353.44

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Solution

The fourth proportional to 549.93, 758.86 and 353.44 is: 487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.93 : 758.86 = 353.44 : x
  2. Step 2: Convert to fraction form
    549.93/758.86 = 353.44/x
  3. Step 3: Cross multiply
    549.93x = 758.86 × 353.44
  4. Step 4: Simplify right side
    549.93x = 268,208.70
  5. Step 5: Solve for x
    x = 268,208.70/549.93
  6. Step 6: Final answer
    x = 487.71

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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.