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Finding the Fourth Proportional to 205.28, 306.05 and 185.37

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Solution

The fourth proportional to 205.28, 306.05 and 185.37 is: 276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.28 : 306.05 = 185.37 : x
  2. Step 2: Convert to fraction form
    205.28/306.05 = 185.37/x
  3. Step 3: Cross multiply
    205.28x = 306.05 × 185.37
  4. Step 4: Simplify right side
    205.28x = 56,732.49
  5. Step 5: Solve for x
    x = 56,732.49/205.28
  6. Step 6: Final answer
    x = 276.37

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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.