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Finding the Fourth Proportional to 250.88, 346.19 and 140.34

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Solution

The fourth proportional to 250.88, 346.19 and 140.34 is: 193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.88 : 346.19 = 140.34 : x
  2. Step 2: Convert to fraction form
    250.88/346.19 = 140.34/x
  3. Step 3: Cross multiply
    250.88x = 346.19 × 140.34
  4. Step 4: Simplify right side
    250.88x = 48,584.30
  5. Step 5: Solve for x
    x = 48,584.30/250.88
  6. Step 6: Final answer
    x = 193.66

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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.