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Finding the Fourth Proportional to 196.01, 270.42 and 120.27

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Solution

The fourth proportional to 196.01, 270.42 and 120.27 is: 165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.01 : 270.42 = 120.27 : x
  2. Step 2: Convert to fraction form
    196.01/270.42 = 120.27/x
  3. Step 3: Cross multiply
    196.01x = 270.42 × 120.27
  4. Step 4: Simplify right side
    196.01x = 32,523.41
  5. Step 5: Solve for x
    x = 32,523.41/196.01
  6. Step 6: Final answer
    x = 165.93

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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.