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Finding the Fourth Proportional to 299,793.80, 449,649.66 and 100,109.90

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Solution

The fourth proportional to 299,793.80, 449,649.66 and 100,109.90 is: 150,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,793.80 : 449,649.66 = 100,109.90 : x
  2. Step 2: Convert to fraction form
    299,793.80/449,649.66 = 100,109.90/x
  3. Step 3: Cross multiply
    299,793.80x = 449,649.66 × 100,109.90
  4. Step 4: Simplify right side
    299,793.80x = 45,014,382,497.63
  5. Step 5: Solve for x
    x = 45,014,382,497.63/299,793.80
  6. Step 6: Final answer
    x = 150,151.15

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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.