Home / 221,074.43-331,676.21-71,311.39

Finding the Fourth Proportional to 221,074.43, 331,676.21 and 71,311.39

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Solution

The fourth proportional to 221,074.43, 331,676.21 and 71,311.39 is: 106,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,074.43 : 331,676.21 = 71,311.39 : x
  2. Step 2: Convert to fraction form
    221,074.43/331,676.21 = 71,311.39/x
  3. Step 3: Cross multiply
    221,074.43x = 331,676.21 × 71,311.39
  4. Step 4: Simplify right side
    221,074.43x = 23,652,290,914.12
  5. Step 5: Solve for x
    x = 23,652,290,914.12/221,074.43
  6. Step 6: Final answer
    x = 106,987.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.