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Finding the Fourth Proportional to 195.69, 269.91 and 150.66

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Solution

The fourth proportional to 195.69, 269.91 and 150.66 is: 207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.69 : 269.91 = 150.66 : x
  2. Step 2: Convert to fraction form
    195.69/269.91 = 150.66/x
  3. Step 3: Cross multiply
    195.69x = 269.91 × 150.66
  4. Step 4: Simplify right side
    195.69x = 40,664.64
  5. Step 5: Solve for x
    x = 40,664.64/195.69
  6. Step 6: Final answer
    x = 207.80

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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.