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Finding the Fourth Proportional to 165.83, 248.25 and 136.82

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Solution

The fourth proportional to 165.83, 248.25 and 136.82 is: 204.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.83 : 248.25 = 136.82 : x
  2. Step 2: Convert to fraction form
    165.83/248.25 = 136.82/x
  3. Step 3: Cross multiply
    165.83x = 248.25 × 136.82
  4. Step 4: Simplify right side
    165.83x = 33,965.57
  5. Step 5: Solve for x
    x = 33,965.57/165.83
  6. Step 6: Final answer
    x = 204.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.