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Finding the Fourth Proportional to 196.16, 270.62 and 118.52

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Solution

The fourth proportional to 196.16, 270.62 and 118.52 is: 163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.16 : 270.62 = 118.52 : x
  2. Step 2: Convert to fraction form
    196.16/270.62 = 118.52/x
  3. Step 3: Cross multiply
    196.16x = 270.62 × 118.52
  4. Step 4: Simplify right side
    196.16x = 32,073.88
  5. Step 5: Solve for x
    x = 32,073.88/196.16
  6. Step 6: Final answer
    x = 163.51

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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.