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Finding the Fourth Proportional to 205.19, 306.39 and 182.10

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Solution

The fourth proportional to 205.19, 306.39 and 182.10 is: 271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.19 : 306.39 = 182.10 : x
  2. Step 2: Convert to fraction form
    205.19/306.39 = 182.10/x
  3. Step 3: Cross multiply
    205.19x = 306.39 × 182.10
  4. Step 4: Simplify right side
    205.19x = 55,793.62
  5. Step 5: Solve for x
    x = 55,793.62/205.19
  6. Step 6: Final answer
    x = 271.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.