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Finding the Fourth Proportional to 267,555.90, 401,375.34 and 90,049.05

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Solution

The fourth proportional to 267,555.90, 401,375.34 and 90,049.05 is: 135,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,555.90 : 401,375.34 = 90,049.05 : x
  2. Step 2: Convert to fraction form
    267,555.90/401,375.34 = 90,049.05/x
  3. Step 3: Cross multiply
    267,555.90x = 401,375.34 × 90,049.05
  4. Step 4: Simplify right side
    267,555.90x = 36,143,468,060.43
  5. Step 5: Solve for x
    x = 36,143,468,060.43/267,555.90
  6. Step 6: Final answer
    x = 135,087.54

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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.