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Finding the Fourth Proportional to 548.43, 822.28 and 183.30

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Solution

The fourth proportional to 548.43, 822.28 and 183.30 is: 274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.43 : 822.28 = 183.30 : x
  2. Step 2: Convert to fraction form
    548.43/822.28 = 183.30/x
  3. Step 3: Cross multiply
    548.43x = 822.28 × 183.30
  4. Step 4: Simplify right side
    548.43x = 150,723.92
  5. Step 5: Solve for x
    x = 150,723.92/548.43
  6. Step 6: Final answer
    x = 274.83

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.