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Finding the Fourth Proportional to 548.09, 822.14 and 223.39

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Solution

The fourth proportional to 548.09, 822.14 and 223.39 is: 335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.09 : 822.14 = 223.39 : x
  2. Step 2: Convert to fraction form
    548.09/822.14 = 223.39/x
  3. Step 3: Cross multiply
    548.09x = 822.14 × 223.39
  4. Step 4: Simplify right side
    548.09x = 183,657.85
  5. Step 5: Solve for x
    x = 183,657.85/548.09
  6. Step 6: Final answer
    x = 335.09

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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.