Home / 220,205.41-330,215.15-68,383.87

Finding the Fourth Proportional to 220,205.41, 330,215.15 and 68,383.87

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Solution

The fourth proportional to 220,205.41, 330,215.15 and 68,383.87 is: 102,546.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,205.41 : 330,215.15 = 68,383.87 : x
  2. Step 2: Convert to fraction form
    220,205.41/330,215.15 = 68,383.87/x
  3. Step 3: Cross multiply
    220,205.41x = 330,215.15 × 68,383.87
  4. Step 4: Simplify right side
    220,205.41x = 22,581,389,235.05
  5. Step 5: Solve for x
    x = 22,581,389,235.05/220,205.41
  6. Step 6: Final answer
    x = 102,546.93

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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.