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Finding the Fourth Proportional to 195.25, 269.45 and 117.63

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Solution

The fourth proportional to 195.25, 269.45 and 117.63 is: 162.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.25 : 269.45 = 117.63 : x
  2. Step 2: Convert to fraction form
    195.25/269.45 = 117.63/x
  3. Step 3: Cross multiply
    195.25x = 269.45 × 117.63
  4. Step 4: Simplify right side
    195.25x = 31,695.40
  5. Step 5: Solve for x
    x = 31,695.40/195.25
  6. Step 6: Final answer
    x = 162.33

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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.