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Finding the Fourth Proportional to 279,910.60, 419,865.90 and 92,922.10

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Solution

The fourth proportional to 279,910.60, 419,865.90 and 92,922.10 is: 139,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,910.60 : 419,865.90 = 92,922.10 : x
  2. Step 2: Convert to fraction form
    279,910.60/419,865.90 = 92,922.10/x
  3. Step 3: Cross multiply
    279,910.60x = 419,865.90 × 92,922.10
  4. Step 4: Simplify right side
    279,910.60x = 39,014,821,146.39
  5. Step 5: Solve for x
    x = 39,014,821,146.39/279,910.60
  6. Step 6: Final answer
    x = 139,383.15

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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.