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Finding the Fourth Proportional to 267,977.20, 401,620.20 and 205,337.20

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Solution

The fourth proportional to 267,977.20, 401,620.20 and 205,337.20 is: 307,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,977.20 : 401,620.20 = 205,337.20 : x
  2. Step 2: Convert to fraction form
    267,977.20/401,620.20 = 205,337.20/x
  3. Step 3: Cross multiply
    267,977.20x = 401,620.20 × 205,337.20
  4. Step 4: Simplify right side
    267,977.20x = 82,467,567,331.44
  5. Step 5: Solve for x
    x = 82,467,567,331.44/267,977.20
  6. Step 6: Final answer
    x = 307,740.98

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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.