Home / 220,550.36-330,625.44-80,209.76

Finding the Fourth Proportional to 220,550.36, 330,625.44 and 80,209.76

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Solution

The fourth proportional to 220,550.36, 330,625.44 and 80,209.76 is: 120,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,550.36 : 330,625.44 = 80,209.76 : x
  2. Step 2: Convert to fraction form
    220,550.36/330,625.44 = 80,209.76/x
  3. Step 3: Cross multiply
    220,550.36x = 330,625.44 × 80,209.76
  4. Step 4: Simplify right side
    220,550.36x = 26,519,387,192.29
  5. Step 5: Solve for x
    x = 26,519,387,192.29/220,550.36
  6. Step 6: Final answer
    x = 120,241.87

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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.