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Finding the Fourth Proportional to 195.50, 270.34 and 186.92

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Solution

The fourth proportional to 195.50, 270.34 and 186.92 is: 258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.50 : 270.34 = 186.92 : x
  2. Step 2: Convert to fraction form
    195.50/270.34 = 186.92/x
  3. Step 3: Cross multiply
    195.50x = 270.34 × 186.92
  4. Step 4: Simplify right side
    195.50x = 50,531.95
  5. Step 5: Solve for x
    x = 50,531.95/195.50
  6. Step 6: Final answer
    x = 258.48

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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.