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Finding the Fourth Proportional to 196.36, 269.39 and 191.56

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Solution

The fourth proportional to 196.36, 269.39 and 191.56 is: 262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.36 : 269.39 = 191.56 : x
  2. Step 2: Convert to fraction form
    196.36/269.39 = 191.56/x
  3. Step 3: Cross multiply
    196.36x = 269.39 × 191.56
  4. Step 4: Simplify right side
    196.36x = 51,604.35
  5. Step 5: Solve for x
    x = 51,604.35/196.36
  6. Step 6: Final answer
    x = 262.80

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.