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Finding the Fourth Proportional to 196.10, 270.38 and 162.95

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Solution

The fourth proportional to 196.10, 270.38 and 162.95 is: 224.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.10 : 270.38 = 162.95 : x
  2. Step 2: Convert to fraction form
    196.10/270.38 = 162.95/x
  3. Step 3: Cross multiply
    196.10x = 270.38 × 162.95
  4. Step 4: Simplify right side
    196.10x = 44,056.56
  5. Step 5: Solve for x
    x = 44,056.56/196.10
  6. Step 6: Final answer
    x = 224.66

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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.