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Finding the Fourth Proportional to 204.55, 306.87 and 60.27

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Solution

The fourth proportional to 204.55, 306.87 and 60.27 is: 90.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.55 : 306.87 = 60.27 : x
  2. Step 2: Convert to fraction form
    204.55/306.87 = 60.27/x
  3. Step 3: Cross multiply
    204.55x = 306.87 × 60.27
  4. Step 4: Simplify right side
    204.55x = 18,493.52
  5. Step 5: Solve for x
    x = 18,493.52/204.55
  6. Step 6: Final answer
    x = 90.41

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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.