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Finding the Fourth Proportional to 195.96, 293.89 and 127.43

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Solution

The fourth proportional to 195.96, 293.89 and 127.43 is: 191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.96 : 293.89 = 127.43 : x
  2. Step 2: Convert to fraction form
    195.96/293.89 = 127.43/x
  3. Step 3: Cross multiply
    195.96x = 293.89 × 127.43
  4. Step 4: Simplify right side
    195.96x = 37,450.40
  5. Step 5: Solve for x
    x = 37,450.40/195.96
  6. Step 6: Final answer
    x = 191.11

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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.