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Finding the Fourth Proportional to 165.95, 249.18 and 135.23

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Solution

The fourth proportional to 165.95, 249.18 and 135.23 is: 203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.95 : 249.18 = 135.23 : x
  2. Step 2: Convert to fraction form
    165.95/249.18 = 135.23/x
  3. Step 3: Cross multiply
    165.95x = 249.18 × 135.23
  4. Step 4: Simplify right side
    165.95x = 33,694.86
  5. Step 5: Solve for x
    x = 33,694.86/165.95
  6. Step 6: Final answer
    x = 203.04

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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.