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Finding the Fourth Proportional to 398,795.94, 550,452.21 and 226,806.62

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Solution

The fourth proportional to 398,795.94, 550,452.21 and 226,806.62 is: 313,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,795.94 : 550,452.21 = 226,806.62 : x
  2. Step 2: Convert to fraction form
    398,795.94/550,452.21 = 226,806.62/x
  3. Step 3: Cross multiply
    398,795.94x = 550,452.21 × 226,806.62
  4. Step 4: Simplify right side
    398,795.94x = 124,846,201,618.84
  5. Step 5: Solve for x
    x = 124,846,201,618.84/398,795.94
  6. Step 6: Final answer
    x = 313,057.86

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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.