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Finding the Fourth Proportional to 250.34, 344.70 and 219.08

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Solution

The fourth proportional to 250.34, 344.70 and 219.08 is: 301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.34 : 344.70 = 219.08 : x
  2. Step 2: Convert to fraction form
    250.34/344.70 = 219.08/x
  3. Step 3: Cross multiply
    250.34x = 344.70 × 219.08
  4. Step 4: Simplify right side
    250.34x = 75,515.15
  5. Step 5: Solve for x
    x = 75,515.15/250.34
  6. Step 6: Final answer
    x = 301.65

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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.