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Finding the Fourth Proportional to 201.69, 300.62 and 196.20

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Solution

The fourth proportional to 201.69, 300.62 and 196.20 is: 292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.69 : 300.62 = 196.20 : x
  2. Step 2: Convert to fraction form
    201.69/300.62 = 196.20/x
  3. Step 3: Cross multiply
    201.69x = 300.62 × 196.20
  4. Step 4: Simplify right side
    201.69x = 58,982.13
  5. Step 5: Solve for x
    x = 58,982.13/201.69
  6. Step 6: Final answer
    x = 292.44

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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.