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Finding the Fourth Proportional to 299,660.45, 449,406.38 and 83,470.03

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Solution

The fourth proportional to 299,660.45, 449,406.38 and 83,470.03 is: 125,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,660.45 : 449,406.38 = 83,470.03 : x
  2. Step 2: Convert to fraction form
    299,660.45/449,406.38 = 83,470.03/x
  3. Step 3: Cross multiply
    299,660.45x = 449,406.38 × 83,470.03
  4. Step 4: Simplify right side
    299,660.45x = 37,511,963,105.95
  5. Step 5: Solve for x
    x = 37,511,963,105.95/299,660.45
  6. Step 6: Final answer
    x = 125,181.56

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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.