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Finding the Fourth Proportional to 247.03, 339.41 and 219.35

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Solution

The fourth proportional to 247.03, 339.41 and 219.35 is: 301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.03 : 339.41 = 219.35 : x
  2. Step 2: Convert to fraction form
    247.03/339.41 = 219.35/x
  3. Step 3: Cross multiply
    247.03x = 339.41 × 219.35
  4. Step 4: Simplify right side
    247.03x = 74,450.98
  5. Step 5: Solve for x
    x = 74,450.98/247.03
  6. Step 6: Final answer
    x = 301.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.