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Finding the Fourth Proportional to 200.94, 279.12 and 195.18

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Solution

The fourth proportional to 200.94, 279.12 and 195.18 is: 271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.94 : 279.12 = 195.18 : x
  2. Step 2: Convert to fraction form
    200.94/279.12 = 195.18/x
  3. Step 3: Cross multiply
    200.94x = 279.12 × 195.18
  4. Step 4: Simplify right side
    200.94x = 54,478.64
  5. Step 5: Solve for x
    x = 54,478.64/200.94
  6. Step 6: Final answer
    x = 271.12

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.