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Finding the Fourth Proportional to 221,626.89, 332,440.32 and 55,414.89

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Solution

The fourth proportional to 221,626.89, 332,440.32 and 55,414.89 is: 83,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,626.89 : 332,440.32 = 55,414.89 : x
  2. Step 2: Convert to fraction form
    221,626.89/332,440.32 = 55,414.89/x
  3. Step 3: Cross multiply
    221,626.89x = 332,440.32 × 55,414.89
  4. Step 4: Simplify right side
    221,626.89x = 18,422,143,764.36
  5. Step 5: Solve for x
    x = 18,422,143,764.36/221,626.89
  6. Step 6: Final answer
    x = 83,122.33

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1.5x scale

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.