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Finding the Fourth Proportional to 303,662.85, 419,229.66 and 201,826.41

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Solution

The fourth proportional to 303,662.85, 419,229.66 and 201,826.41 is: 278,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,662.85 : 419,229.66 = 201,826.41 : x
  2. Step 2: Convert to fraction form
    303,662.85/419,229.66 = 201,826.41/x
  3. Step 3: Cross multiply
    303,662.85x = 419,229.66 × 201,826.41
  4. Step 4: Simplify right side
    303,662.85x = 84,611,617,243.32
  5. Step 5: Solve for x
    x = 84,611,617,243.32/303,662.85
  6. Step 6: Final answer
    x = 278,636.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.