Home / 214,622.28-321,504.21-129,186.21

Finding the Fourth Proportional to 214,622.28, 321,504.21 and 129,186.21

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Solution

The fourth proportional to 214,622.28, 321,504.21 and 129,186.21 is: 193,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,622.28 : 321,504.21 = 129,186.21 : x
  2. Step 2: Convert to fraction form
    214,622.28/321,504.21 = 129,186.21/x
  3. Step 3: Cross multiply
    214,622.28x = 321,504.21 × 129,186.21
  4. Step 4: Simplify right side
    214,622.28x = 41,533,910,388.94
  5. Step 5: Solve for x
    x = 41,533,910,388.94/214,622.28
  6. Step 6: Final answer
    x = 193,520.96

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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.