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Finding the Fourth Proportional to 408,299.16, 563,471.60 and 227,029.71

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Solution

The fourth proportional to 408,299.16, 563,471.60 and 227,029.71 is: 313,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,299.16 : 563,471.60 = 227,029.71 : x
  2. Step 2: Convert to fraction form
    408,299.16/563,471.60 = 227,029.71/x
  3. Step 3: Cross multiply
    408,299.16x = 563,471.60 × 227,029.71
  4. Step 4: Simplify right side
    408,299.16x = 127,924,792,806.09
  5. Step 5: Solve for x
    x = 127,924,792,806.09/408,299.16
  6. Step 6: Final answer
    x = 313,311.43

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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.