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Finding the Fourth Proportional to 200.16, 274.52 and 197.76

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Solution

The fourth proportional to 200.16, 274.52 and 197.76 is: 271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.16 : 274.52 = 197.76 : x
  2. Step 2: Convert to fraction form
    200.16/274.52 = 197.76/x
  3. Step 3: Cross multiply
    200.16x = 274.52 × 197.76
  4. Step 4: Simplify right side
    200.16x = 54,288.09
  5. Step 5: Solve for x
    x = 54,288.09/200.16
  6. Step 6: Final answer
    x = 271.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.