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Finding the Fourth Proportional to 195.66, 268.61 and 173.79

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Solution

The fourth proportional to 195.66, 268.61 and 173.79 is: 238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.66 : 268.61 = 173.79 : x
  2. Step 2: Convert to fraction form
    195.66/268.61 = 173.79/x
  3. Step 3: Cross multiply
    195.66x = 268.61 × 173.79
  4. Step 4: Simplify right side
    195.66x = 46,680.86
  5. Step 5: Solve for x
    x = 46,680.86/195.66
  6. Step 6: Final answer
    x = 238.58

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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.