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Finding the Fourth Proportional to 160.45, 241.21 and 126.62

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Solution

The fourth proportional to 160.45, 241.21 and 126.62 is: 190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.45 : 241.21 = 126.62 : x
  2. Step 2: Convert to fraction form
    160.45/241.21 = 126.62/x
  3. Step 3: Cross multiply
    160.45x = 241.21 × 126.62
  4. Step 4: Simplify right side
    160.45x = 30,540.25
  5. Step 5: Solve for x
    x = 30,540.25/160.45
  6. Step 6: Final answer
    x = 190.35

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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.