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Finding the Fourth Proportional to 344.38, 475.22 and 196.98

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Solution

The fourth proportional to 344.38, 475.22 and 196.98 is: 271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.38 : 475.22 = 196.98 : x
  2. Step 2: Convert to fraction form
    344.38/475.22 = 196.98/x
  3. Step 3: Cross multiply
    344.38x = 475.22 × 196.98
  4. Step 4: Simplify right side
    344.38x = 93,607.85
  5. Step 5: Solve for x
    x = 93,607.85/344.38
  6. Step 6: Final answer
    x = 271.82

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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.