Home / 221,440.20-332,212.97-71,680.51

Finding the Fourth Proportional to 221,440.20, 332,212.97 and 71,680.51

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Solution

The fourth proportional to 221,440.20, 332,212.97 and 71,680.51 is: 107,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,440.20 : 332,212.97 = 71,680.51 : x
  2. Step 2: Convert to fraction form
    221,440.20/332,212.97 = 71,680.51/x
  3. Step 3: Cross multiply
    221,440.20x = 332,212.97 × 71,680.51
  4. Step 4: Simplify right side
    221,440.20x = 23,813,195,118.21
  5. Step 5: Solve for x
    x = 23,813,195,118.21/221,440.20
  6. Step 6: Final answer
    x = 107,537.81

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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.