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Finding the Fourth Proportional to 549.44, 758.23 and 339.57

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Solution

The fourth proportional to 549.44, 758.23 and 339.57 is: 468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.44 : 758.23 = 339.57 : x
  2. Step 2: Convert to fraction form
    549.44/758.23 = 339.57/x
  3. Step 3: Cross multiply
    549.44x = 758.23 × 339.57
  4. Step 4: Simplify right side
    549.44x = 257,472.27
  5. Step 5: Solve for x
    x = 257,472.27/549.44
  6. Step 6: Final answer
    x = 468.61

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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.