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Finding the Fourth Proportional to 220,633.77, 330,884.68 and 80,359.59

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Solution

The fourth proportional to 220,633.77, 330,884.68 and 80,359.59 is: 120,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,633.77 : 330,884.68 = 80,359.59 : x
  2. Step 2: Convert to fraction form
    220,633.77/330,884.68 = 80,359.59/x
  3. Step 3: Cross multiply
    220,633.77x = 330,884.68 × 80,359.59
  4. Step 4: Simplify right side
    220,633.77x = 26,589,757,222.08
  5. Step 5: Solve for x
    x = 26,589,757,222.08/220,633.77
  6. Step 6: Final answer
    x = 120,515.36

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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.