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Finding the Fourth Proportional to 299,785.59, 449,722.17 and 89,396.19

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Solution

The fourth proportional to 299,785.59, 449,722.17 and 89,396.19 is: 134,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,785.59 : 449,722.17 = 89,396.19 : x
  2. Step 2: Convert to fraction form
    299,785.59/449,722.17 = 89,396.19/x
  3. Step 3: Cross multiply
    299,785.59x = 449,722.17 × 89,396.19
  4. Step 4: Simplify right side
    299,785.59x = 40,203,448,556.53
  5. Step 5: Solve for x
    x = 40,203,448,556.53/299,785.59
  6. Step 6: Final answer
    x = 134,107.34

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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.