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Finding the Fourth Proportional to 161.61, 241.19 and 134.34

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Solution

The fourth proportional to 161.61, 241.19 and 134.34 is: 200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.61 : 241.19 = 134.34 : x
  2. Step 2: Convert to fraction form
    161.61/241.19 = 134.34/x
  3. Step 3: Cross multiply
    161.61x = 241.19 × 134.34
  4. Step 4: Simplify right side
    161.61x = 32,400.79
  5. Step 5: Solve for x
    x = 32,400.79/161.61
  6. Step 6: Final answer
    x = 200.49

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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.