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Finding the Fourth Proportional to 267,027.57, 400,490.36 and 80,039.07

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Solution

The fourth proportional to 267,027.57, 400,490.36 and 80,039.07 is: 120,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,027.57 : 400,490.36 = 80,039.07 : x
  2. Step 2: Convert to fraction form
    267,027.57/400,490.36 = 80,039.07/x
  3. Step 3: Cross multiply
    267,027.57x = 400,490.36 × 80,039.07
  4. Step 4: Simplify right side
    267,027.57x = 32,054,875,958.37
  5. Step 5: Solve for x
    x = 32,054,875,958.37/267,027.57
  6. Step 6: Final answer
    x = 120,043.32

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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.