Home / 299,669.91-449,354.39-99,919.59

Finding the Fourth Proportional to 299,669.91, 449,354.39 and 99,919.59

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Solution

The fourth proportional to 299,669.91, 449,354.39 and 99,919.59 is: 149,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,669.91 : 449,354.39 = 99,919.59 : x
  2. Step 2: Convert to fraction form
    299,669.91/449,354.39 = 99,919.59/x
  3. Step 3: Cross multiply
    299,669.91x = 449,354.39 × 99,919.59
  4. Step 4: Simplify right side
    299,669.91x = 44,899,305,913.90
  5. Step 5: Solve for x
    x = 44,899,305,913.90/299,669.91
  6. Step 6: Final answer
    x = 149,829.21

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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.