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Finding the Fourth Proportional to 404,103.20, 606,227.70 and 203,919.80

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Solution

The fourth proportional to 404,103.20, 606,227.70 and 203,919.80 is: 305,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,103.20 : 606,227.70 = 203,919.80 : x
  2. Step 2: Convert to fraction form
    404,103.20/606,227.70 = 203,919.80/x
  3. Step 3: Cross multiply
    404,103.20x = 606,227.70 × 203,919.80
  4. Step 4: Simplify right side
    404,103.20x = 123,621,831,338.46
  5. Step 5: Solve for x
    x = 123,621,831,338.46/404,103.20
  6. Step 6: Final answer
    x = 305,916.49

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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.