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Finding the Fourth Proportional to 195.50, 293.27 and 79.92

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Solution

The fourth proportional to 195.50, 293.27 and 79.92 is: 119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.50 : 293.27 = 79.92 : x
  2. Step 2: Convert to fraction form
    195.50/293.27 = 79.92/x
  3. Step 3: Cross multiply
    195.50x = 293.27 × 79.92
  4. Step 4: Simplify right side
    195.50x = 23,437.74
  5. Step 5: Solve for x
    x = 23,437.74/195.50
  6. Step 6: Final answer
    x = 119.89

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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.