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Finding the Fourth Proportional to 298,743.40, 446,819.10 and 267,380.20

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Solution

The fourth proportional to 298,743.40, 446,819.10 and 267,380.20 is: 399,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,743.40 : 446,819.10 = 267,380.20 : x
  2. Step 2: Convert to fraction form
    298,743.40/446,819.10 = 267,380.20/x
  3. Step 3: Cross multiply
    298,743.40x = 446,819.10 × 267,380.20
  4. Step 4: Simplify right side
    298,743.40x = 119,470,580,321.82
  5. Step 5: Solve for x
    x = 119,470,580,321.82/298,743.40
  6. Step 6: Final answer
    x = 399,910.36

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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.