Home / 299,964.05-449,969.99-100,285.47

Finding the Fourth Proportional to 299,964.05, 449,969.99 and 100,285.47

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Solution

The fourth proportional to 299,964.05, 449,969.99 and 100,285.47 is: 150,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,964.05 : 449,969.99 = 100,285.47 : x
  2. Step 2: Convert to fraction form
    299,964.05/449,969.99 = 100,285.47/x
  3. Step 3: Cross multiply
    299,964.05x = 449,969.99 × 100,285.47
  4. Step 4: Simplify right side
    299,964.05x = 45,125,451,431.62
  5. Step 5: Solve for x
    x = 45,125,451,431.62/299,964.05
  6. Step 6: Final answer
    x = 150,436.20

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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.