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Finding the Fourth Proportional to 285,163.20, 427,744.80 and 267,667.20

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Solution

The fourth proportional to 285,163.20, 427,744.80 and 267,667.20 is: 401,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,163.20 : 427,744.80 = 267,667.20 : x
  2. Step 2: Convert to fraction form
    285,163.20/427,744.80 = 267,667.20/x
  3. Step 3: Cross multiply
    285,163.20x = 427,744.80 × 267,667.20
  4. Step 4: Simplify right side
    285,163.20x = 114,493,252,930.56
  5. Step 5: Solve for x
    x = 114,493,252,930.56/285,163.20
  6. Step 6: Final answer
    x = 401,500.80

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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.