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Finding the Fourth Proportional to 204.89, 306.25 and 177.77

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Solution

The fourth proportional to 204.89, 306.25 and 177.77 is: 265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.89 : 306.25 = 177.77 : x
  2. Step 2: Convert to fraction form
    204.89/306.25 = 177.77/x
  3. Step 3: Cross multiply
    204.89x = 306.25 × 177.77
  4. Step 4: Simplify right side
    204.89x = 54,442.06
  5. Step 5: Solve for x
    x = 54,442.06/204.89
  6. Step 6: Final answer
    x = 265.71

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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.