Home / 220,997.40-331,496.10-80,856.60

Finding the Fourth Proportional to 220,997.40, 331,496.10 and 80,856.60

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Solution

The fourth proportional to 220,997.40, 331,496.10 and 80,856.60 is: 121,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,997.40 : 331,496.10 = 80,856.60 : x
  2. Step 2: Convert to fraction form
    220,997.40/331,496.10 = 80,856.60/x
  3. Step 3: Cross multiply
    220,997.40x = 331,496.10 × 80,856.60
  4. Step 4: Simplify right side
    220,997.40x = 26,803,647,559.26
  5. Step 5: Solve for x
    x = 26,803,647,559.26/220,997.40
  6. Step 6: Final answer
    x = 121,284.90

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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.