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Finding the Fourth Proportional to 268.50, 402.75 and 160.37

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Solution

The fourth proportional to 268.50, 402.75 and 160.37 is: 240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.50 : 402.75 = 160.37 : x
  2. Step 2: Convert to fraction form
    268.50/402.75 = 160.37/x
  3. Step 3: Cross multiply
    268.50x = 402.75 × 160.37
  4. Step 4: Simplify right side
    268.50x = 64,589.02
  5. Step 5: Solve for x
    x = 64,589.02/268.50
  6. Step 6: Final answer
    x = 240.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.