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Finding the Fourth Proportional to 197.10, 271.96 and 190.52

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Solution

The fourth proportional to 197.10, 271.96 and 190.52 is: 262.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.10 : 271.96 = 190.52 : x
  2. Step 2: Convert to fraction form
    197.10/271.96 = 190.52/x
  3. Step 3: Cross multiply
    197.10x = 271.96 × 190.52
  4. Step 4: Simplify right side
    197.10x = 51,813.00
  5. Step 5: Solve for x
    x = 51,813.00/197.10
  6. Step 6: Final answer
    x = 262.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.