Home / 299,939.80-449,916.90-89,584.60

Finding the Fourth Proportional to 299,939.80, 449,916.90 and 89,584.60

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Solution

The fourth proportional to 299,939.80, 449,916.90 and 89,584.60 is: 134,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,939.80 : 449,916.90 = 89,584.60 : x
  2. Step 2: Convert to fraction form
    299,939.80/449,916.90 = 89,584.60/x
  3. Step 3: Cross multiply
    299,939.80x = 449,916.90 × 89,584.60
  4. Step 4: Simplify right side
    299,939.80x = 40,305,625,519.74
  5. Step 5: Solve for x
    x = 40,305,625,519.74/299,939.80
  6. Step 6: Final answer
    x = 134,379.05

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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.