Home / 221,190.40-331,785.60-132,716.80

Finding the Fourth Proportional to 221,190.40, 331,785.60 and 132,716.80

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Solution

The fourth proportional to 221,190.40, 331,785.60 and 132,716.80 is: 199,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,190.40 : 331,785.60 = 132,716.80 : x
  2. Step 2: Convert to fraction form
    221,190.40/331,785.60 = 132,716.80/x
  3. Step 3: Cross multiply
    221,190.40x = 331,785.60 × 132,716.80
  4. Step 4: Simplify right side
    221,190.40x = 44,033,523,118.08
  5. Step 5: Solve for x
    x = 44,033,523,118.08/221,190.40
  6. Step 6: Final answer
    x = 199,075.20

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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.