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Finding the Fourth Proportional to 197.32, 272.92 and 176.55

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Solution

The fourth proportional to 197.32, 272.92 and 176.55 is: 244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.32 : 272.92 = 176.55 : x
  2. Step 2: Convert to fraction form
    197.32/272.92 = 176.55/x
  3. Step 3: Cross multiply
    197.32x = 272.92 × 176.55
  4. Step 4: Simplify right side
    197.32x = 48,185.19
  5. Step 5: Solve for x
    x = 48,185.19/197.32
  6. Step 6: Final answer
    x = 244.19

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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.