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Finding the Fourth Proportional to 299,453.40, 449,180.10 and 281,738.70

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Solution

The fourth proportional to 299,453.40, 449,180.10 and 281,738.70 is: 422,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,453.40 : 449,180.10 = 281,738.70 : x
  2. Step 2: Convert to fraction form
    299,453.40/449,180.10 = 281,738.70/x
  3. Step 3: Cross multiply
    299,453.40x = 449,180.10 × 281,738.70
  4. Step 4: Simplify right side
    299,453.40x = 126,551,417,439.87
  5. Step 5: Solve for x
    x = 126,551,417,439.87/299,453.40
  6. Step 6: Final answer
    x = 422,608.05

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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.