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Finding the Fourth Proportional to 226.24, 311.46 and 197.13

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Solution

The fourth proportional to 226.24, 311.46 and 197.13 is: 271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.24 : 311.46 = 197.13 : x
  2. Step 2: Convert to fraction form
    226.24/311.46 = 197.13/x
  3. Step 3: Cross multiply
    226.24x = 311.46 × 197.13
  4. Step 4: Simplify right side
    226.24x = 61,398.11
  5. Step 5: Solve for x
    x = 61,398.11/226.24
  6. Step 6: Final answer
    x = 271.38

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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.