Home / 221,869.82-332,706.09-137,626.58

Finding the Fourth Proportional to 221,869.82, 332,706.09 and 137,626.58

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Solution

The fourth proportional to 221,869.82, 332,706.09 and 137,626.58 is: 206,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,869.82 : 332,706.09 = 137,626.58 : x
  2. Step 2: Convert to fraction form
    221,869.82/332,706.09 = 137,626.58/x
  3. Step 3: Cross multiply
    221,869.82x = 332,706.09 × 137,626.58
  4. Step 4: Simplify right side
    221,869.82x = 45,789,201,311.87
  5. Step 5: Solve for x
    x = 45,789,201,311.87/221,869.82
  6. Step 6: Final answer
    x = 206,378.68

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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.