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Finding the Fourth Proportional to 299,378.40, 449,067.60 and 295,441.80

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Solution

The fourth proportional to 299,378.40, 449,067.60 and 295,441.80 is: 443,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,378.40 : 449,067.60 = 295,441.80 : x
  2. Step 2: Convert to fraction form
    299,378.40/449,067.60 = 295,441.80/x
  3. Step 3: Cross multiply
    299,378.40x = 449,067.60 × 295,441.80
  4. Step 4: Simplify right side
    299,378.40x = 132,673,340,065.68
  5. Step 5: Solve for x
    x = 132,673,340,065.68/299,378.40
  6. Step 6: Final answer
    x = 443,162.70

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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.