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Finding the Fourth Proportional to 195.72, 268.97 and 160.68

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Solution

The fourth proportional to 195.72, 268.97 and 160.68 is: 220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.72 : 268.97 = 160.68 : x
  2. Step 2: Convert to fraction form
    195.72/268.97 = 160.68/x
  3. Step 3: Cross multiply
    195.72x = 268.97 × 160.68
  4. Step 4: Simplify right side
    195.72x = 43,219.21
  5. Step 5: Solve for x
    x = 43,219.21/195.72
  6. Step 6: Final answer
    x = 220.83

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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.