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Finding the Fourth Proportional to 424,830.87, 637,059.34 and 225,105.22

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Solution

The fourth proportional to 424,830.87, 637,059.34 and 225,105.22 is: 337,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,830.87 : 637,059.34 = 225,105.22 : x
  2. Step 2: Convert to fraction form
    424,830.87/637,059.34 = 225,105.22/x
  3. Step 3: Cross multiply
    424,830.87x = 637,059.34 × 225,105.22
  4. Step 4: Simplify right side
    424,830.87x = 143,405,382,766.97
  5. Step 5: Solve for x
    x = 143,405,382,766.97/424,830.87
  6. Step 6: Final answer
    x = 337,558.76

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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.