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Finding the Fourth Proportional to 197.22, 271.62 and 164.10

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Solution

The fourth proportional to 197.22, 271.62 and 164.10 is: 226.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.22 : 271.62 = 164.10 : x
  2. Step 2: Convert to fraction form
    197.22/271.62 = 164.10/x
  3. Step 3: Cross multiply
    197.22x = 271.62 × 164.10
  4. Step 4: Simplify right side
    197.22x = 44,572.84
  5. Step 5: Solve for x
    x = 44,572.84/197.22
  6. Step 6: Final answer
    x = 226.01

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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.