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Finding the Fourth Proportional to 279,880.30, 419,571.89 and 109,062.47

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Solution

The fourth proportional to 279,880.30, 419,571.89 and 109,062.47 is: 163,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,880.30 : 419,571.89 = 109,062.47 : x
  2. Step 2: Convert to fraction form
    279,880.30/419,571.89 = 109,062.47/x
  3. Step 3: Cross multiply
    279,880.30x = 419,571.89 × 109,062.47
  4. Step 4: Simplify right side
    279,880.30x = 45,759,546,665.97
  5. Step 5: Solve for x
    x = 45,759,546,665.97/279,880.30
  6. Step 6: Final answer
    x = 163,496.85

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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.