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Finding the Fourth Proportional to 195.30, 269.22 and 151.56

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Solution

The fourth proportional to 195.30, 269.22 and 151.56 is: 208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.30 : 269.22 = 151.56 : x
  2. Step 2: Convert to fraction form
    195.30/269.22 = 151.56/x
  3. Step 3: Cross multiply
    195.30x = 269.22 × 151.56
  4. Step 4: Simplify right side
    195.30x = 40,802.98
  5. Step 5: Solve for x
    x = 40,802.98/195.30
  6. Step 6: Final answer
    x = 208.92

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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.