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Finding the Fourth Proportional to 548.24, 818.96 and 493.29

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Solution

The fourth proportional to 548.24, 818.96 and 493.29 is: 736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.24 : 818.96 = 493.29 : x
  2. Step 2: Convert to fraction form
    548.24/818.96 = 493.29/x
  3. Step 3: Cross multiply
    548.24x = 818.96 × 493.29
  4. Step 4: Simplify right side
    548.24x = 403,982.31
  5. Step 5: Solve for x
    x = 403,982.31/548.24
  6. Step 6: Final answer
    x = 736.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.