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Finding the Fourth Proportional to 161.88, 241.19 and 158.24

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Solution

The fourth proportional to 161.88, 241.19 and 158.24 is: 235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.88 : 241.19 = 158.24 : x
  2. Step 2: Convert to fraction form
    161.88/241.19 = 158.24/x
  3. Step 3: Cross multiply
    161.88x = 241.19 × 158.24
  4. Step 4: Simplify right side
    161.88x = 38,163.91
  5. Step 5: Solve for x
    x = 38,163.91/161.88
  6. Step 6: Final answer
    x = 235.75

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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.