Home / 299,619.82-449,431.41-99,939.66

Finding the Fourth Proportional to 299,619.82, 449,431.41 and 99,939.66

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Solution

The fourth proportional to 299,619.82, 449,431.41 and 99,939.66 is: 149,910.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,619.82 : 449,431.41 = 99,939.66 : x
  2. Step 2: Convert to fraction form
    299,619.82/449,431.41 = 99,939.66/x
  3. Step 3: Cross multiply
    299,619.82x = 449,431.41 × 99,939.66
  4. Step 4: Simplify right side
    299,619.82x = 44,916,022,613.09
  5. Step 5: Solve for x
    x = 44,916,022,613.09/299,619.82
  6. Step 6: Final answer
    x = 149,910.05

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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.