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Finding the Fourth Proportional to 250.39, 345.41 and 161.84

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Solution

The fourth proportional to 250.39, 345.41 and 161.84 is: 223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.39 : 345.41 = 161.84 : x
  2. Step 2: Convert to fraction form
    250.39/345.41 = 161.84/x
  3. Step 3: Cross multiply
    250.39x = 345.41 × 161.84
  4. Step 4: Simplify right side
    250.39x = 55,902.42
  5. Step 5: Solve for x
    x = 55,902.42/250.39
  6. Step 6: Final answer
    x = 223.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.