Home / 220,720.65-331,003.08-70,910.34

Finding the Fourth Proportional to 220,720.65, 331,003.08 and 70,910.34

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Solution

The fourth proportional to 220,720.65, 331,003.08 and 70,910.34 is: 106,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,720.65 : 331,003.08 = 70,910.34 : x
  2. Step 2: Convert to fraction form
    220,720.65/331,003.08 = 70,910.34/x
  3. Step 3: Cross multiply
    220,720.65x = 331,003.08 × 70,910.34
  4. Step 4: Simplify right side
    220,720.65x = 23,471,540,943.85
  5. Step 5: Solve for x
    x = 23,471,540,943.85/220,720.65
  6. Step 6: Final answer
    x = 106,340.48

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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.