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Finding the Fourth Proportional to 279,469.80, 419,204.70 and 267,222.60

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Solution

The fourth proportional to 279,469.80, 419,204.70 and 267,222.60 is: 400,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,469.80 : 419,204.70 = 267,222.60 : x
  2. Step 2: Convert to fraction form
    279,469.80/419,204.70 = 267,222.60/x
  3. Step 3: Cross multiply
    279,469.80x = 419,204.70 × 267,222.60
  4. Step 4: Simplify right side
    279,469.80x = 112,020,969,866.22
  5. Step 5: Solve for x
    x = 112,020,969,866.22/279,469.80
  6. Step 6: Final answer
    x = 400,833.90

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1.5x scale

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.