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Finding the Fourth Proportional to 197.76, 272.52 and 184.64

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Solution

The fourth proportional to 197.76, 272.52 and 184.64 is: 254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.76 : 272.52 = 184.64 : x
  2. Step 2: Convert to fraction form
    197.76/272.52 = 184.64/x
  3. Step 3: Cross multiply
    197.76x = 272.52 × 184.64
  4. Step 4: Simplify right side
    197.76x = 50,318.09
  5. Step 5: Solve for x
    x = 50,318.09/197.76
  6. Step 6: Final answer
    x = 254.44

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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.