Home / 214,617.40-321,983.70-191,404.60

Finding the Fourth Proportional to 214,617.40, 321,983.70 and 191,404.60

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Solution

The fourth proportional to 214,617.40, 321,983.70 and 191,404.60 is: 287,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,617.40 : 321,983.70 = 191,404.60 : x
  2. Step 2: Convert to fraction form
    214,617.40/321,983.70 = 191,404.60/x
  3. Step 3: Cross multiply
    214,617.40x = 321,983.70 × 191,404.60
  4. Step 4: Simplify right side
    214,617.40x = 61,629,161,305.02
  5. Step 5: Solve for x
    x = 61,629,161,305.02/214,617.40
  6. Step 6: Final answer
    x = 287,158.27

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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.