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Finding the Fourth Proportional to 267,616.56, 401,424.85 and 90,108.71

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Solution

The fourth proportional to 267,616.56, 401,424.85 and 90,108.71 is: 135,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,616.56 : 401,424.85 = 90,108.71 : x
  2. Step 2: Convert to fraction form
    267,616.56/401,424.85 = 90,108.71/x
  3. Step 3: Cross multiply
    267,616.56x = 401,424.85 × 90,108.71
  4. Step 4: Simplify right side
    267,616.56x = 36,171,874,499.44
  5. Step 5: Solve for x
    x = 36,171,874,499.44/267,616.56
  6. Step 6: Final answer
    x = 135,163.06

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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.