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Finding the Fourth Proportional to 197.21, 295.63 and 75.44

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Solution

The fourth proportional to 197.21, 295.63 and 75.44 is: 113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.21 : 295.63 = 75.44 : x
  2. Step 2: Convert to fraction form
    197.21/295.63 = 75.44/x
  3. Step 3: Cross multiply
    197.21x = 295.63 × 75.44
  4. Step 4: Simplify right side
    197.21x = 22,302.33
  5. Step 5: Solve for x
    x = 22,302.33/197.21
  6. Step 6: Final answer
    x = 113.09

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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.