Home / 214,620.28-321,501.21-129,184.21

Finding the Fourth Proportional to 214,620.28, 321,501.21 and 129,184.21

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Solution

The fourth proportional to 214,620.28, 321,501.21 and 129,184.21 is: 193,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,620.28 : 321,501.21 = 129,184.21 : x
  2. Step 2: Convert to fraction form
    214,620.28/321,501.21 = 129,184.21/x
  3. Step 3: Cross multiply
    214,620.28x = 321,501.21 × 129,184.21
  4. Step 4: Simplify right side
    214,620.28x = 41,532,878,220.39
  5. Step 5: Solve for x
    x = 41,532,878,220.39/214,620.28
  6. Step 6: Final answer
    x = 193,517.96

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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.