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Finding the Fourth Proportional to 221,806.40, 332,709.60 and 162,757.40

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Solution

The fourth proportional to 221,806.40, 332,709.60 and 162,757.40 is: 244,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,806.40 : 332,709.60 = 162,757.40 : x
  2. Step 2: Convert to fraction form
    221,806.40/332,709.60 = 162,757.40/x
  3. Step 3: Cross multiply
    221,806.40x = 332,709.60 × 162,757.40
  4. Step 4: Simplify right side
    221,806.40x = 54,150,949,451.04
  5. Step 5: Solve for x
    x = 54,150,949,451.04/221,806.40
  6. Step 6: Final answer
    x = 244,136.10

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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.