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Finding the Fourth Proportional to 180,382.80, 270,365.07 and 67,991.07

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Solution

The fourth proportional to 180,382.80, 270,365.07 and 67,991.07 is: 101,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,382.80 : 270,365.07 = 67,991.07 : x
  2. Step 2: Convert to fraction form
    180,382.80/270,365.07 = 67,991.07/x
  3. Step 3: Cross multiply
    180,382.80x = 270,365.07 × 67,991.07
  4. Step 4: Simplify right side
    180,382.80x = 18,382,410,399.92
  5. Step 5: Solve for x
    x = 18,382,410,399.92/180,382.80
  6. Step 6: Final answer
    x = 101,907.78

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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.