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Finding the Fourth Proportional to 200.60, 299.31 and 168.60

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Solution

The fourth proportional to 200.60, 299.31 and 168.60 is: 251.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.60 : 299.31 = 168.60 : x
  2. Step 2: Convert to fraction form
    200.60/299.31 = 168.60/x
  3. Step 3: Cross multiply
    200.60x = 299.31 × 168.60
  4. Step 4: Simplify right side
    200.60x = 50,463.67
  5. Step 5: Solve for x
    x = 50,463.67/200.60
  6. Step 6: Final answer
    x = 251.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.