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Finding the Fourth Proportional to 160.38, 241.11 and 126.55

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Solution

The fourth proportional to 160.38, 241.11 and 126.55 is: 190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.38 : 241.11 = 126.55 : x
  2. Step 2: Convert to fraction form
    160.38/241.11 = 126.55/x
  3. Step 3: Cross multiply
    160.38x = 241.11 × 126.55
  4. Step 4: Simplify right side
    160.38x = 30,513.39
  5. Step 5: Solve for x
    x = 30,513.39/160.38
  6. Step 6: Final answer
    x = 190.25

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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.