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Finding the Fourth Proportional to 197.37, 272.84 and 165.17

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Solution

The fourth proportional to 197.37, 272.84 and 165.17 is: 228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.37 : 272.84 = 165.17 : x
  2. Step 2: Convert to fraction form
    197.37/272.84 = 165.17/x
  3. Step 3: Cross multiply
    197.37x = 272.84 × 165.17
  4. Step 4: Simplify right side
    197.37x = 45,064.84
  5. Step 5: Solve for x
    x = 45,064.84/197.37
  6. Step 6: Final answer
    x = 228.33

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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.