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Finding the Fourth Proportional to 279,794.00, 419,772.74 and 90,250.18

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Solution

The fourth proportional to 279,794.00, 419,772.74 and 90,250.18 is: 135,401.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,794.00 : 419,772.74 = 90,250.18 : x
  2. Step 2: Convert to fraction form
    279,794.00/419,772.74 = 90,250.18/x
  3. Step 3: Cross multiply
    279,794.00x = 419,772.74 × 90,250.18
  4. Step 4: Simplify right side
    279,794.00x = 37,884,563,843.41
  5. Step 5: Solve for x
    x = 37,884,563,843.41/279,794.00
  6. Step 6: Final answer
    x = 135,401.63

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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.