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Finding the Fourth Proportional to 205.56, 308.10 and 176.85

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Solution

The fourth proportional to 205.56, 308.10 and 176.85 is: 265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.56 : 308.10 = 176.85 : x
  2. Step 2: Convert to fraction form
    205.56/308.10 = 176.85/x
  3. Step 3: Cross multiply
    205.56x = 308.10 × 176.85
  4. Step 4: Simplify right side
    205.56x = 54,487.49
  5. Step 5: Solve for x
    x = 54,487.49/205.56
  6. Step 6: Final answer
    x = 265.07

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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.