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Finding the Fourth Proportional to 267,400.08, 401,100.81 and 67,720.49

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Solution

The fourth proportional to 267,400.08, 401,100.81 and 67,720.49 is: 101,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,400.08 : 401,100.81 = 67,720.49 : x
  2. Step 2: Convert to fraction form
    267,400.08/401,100.81 = 67,720.49/x
  3. Step 3: Cross multiply
    267,400.08x = 401,100.81 × 67,720.49
  4. Step 4: Simplify right side
    267,400.08x = 27,162,741,387.09
  5. Step 5: Solve for x
    x = 27,162,741,387.09/267,400.08
  6. Step 6: Final answer
    x = 101,580.90

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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.