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Finding the Fourth Proportional to 202.76, 302.41 and 198.44

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Solution

The fourth proportional to 202.76, 302.41 and 198.44 is: 295.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.76 : 302.41 = 198.44 : x
  2. Step 2: Convert to fraction form
    202.76/302.41 = 198.44/x
  3. Step 3: Cross multiply
    202.76x = 302.41 × 198.44
  4. Step 4: Simplify right side
    202.76x = 60,010.24
  5. Step 5: Solve for x
    x = 60,010.24/202.76
  6. Step 6: Final answer
    x = 295.97

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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.