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Finding the Fourth Proportional to 205.58, 308.08 and 179.82

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Solution

The fourth proportional to 205.58, 308.08 and 179.82 is: 269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.58 : 308.08 = 179.82 : x
  2. Step 2: Convert to fraction form
    205.58/308.08 = 179.82/x
  3. Step 3: Cross multiply
    205.58x = 308.08 × 179.82
  4. Step 4: Simplify right side
    205.58x = 55,398.95
  5. Step 5: Solve for x
    x = 55,398.95/205.58
  6. Step 6: Final answer
    x = 269.48

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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.