Home / 220,722.12-331,132.14-80,480.34

Finding the Fourth Proportional to 220,722.12, 331,132.14 and 80,480.34

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Solution

The fourth proportional to 220,722.12, 331,132.14 and 80,480.34 is: 120,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,722.12 : 331,132.14 = 80,480.34 : x
  2. Step 2: Convert to fraction form
    220,722.12/331,132.14 = 80,480.34/x
  3. Step 3: Cross multiply
    220,722.12x = 331,132.14 × 80,480.34
  4. Step 4: Simplify right side
    220,722.12x = 26,649,627,212.13
  5. Step 5: Solve for x
    x = 26,649,627,212.13/220,722.12
  6. Step 6: Final answer
    x = 120,738.36

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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.