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Finding the Fourth Proportional to 548.22, 818.50 and 544.38

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Solution

The fourth proportional to 548.22, 818.50 and 544.38 is: 812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.22 : 818.50 = 544.38 : x
  2. Step 2: Convert to fraction form
    548.22/818.50 = 544.38/x
  3. Step 3: Cross multiply
    548.22x = 818.50 × 544.38
  4. Step 4: Simplify right side
    548.22x = 445,575.03
  5. Step 5: Solve for x
    x = 445,575.03/548.22
  6. Step 6: Final answer
    x = 812.77

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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.