Home / 214,844.80-321,878.40-131,641.60

Finding the Fourth Proportional to 214,844.80, 321,878.40 and 131,641.60

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Solution

The fourth proportional to 214,844.80, 321,878.40 and 131,641.60 is: 197,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,844.80 : 321,878.40 = 131,641.60 : x
  2. Step 2: Convert to fraction form
    214,844.80/321,878.40 = 131,641.60/x
  3. Step 3: Cross multiply
    214,844.80x = 321,878.40 × 131,641.60
  4. Step 4: Simplify right side
    214,844.80x = 42,372,587,581.44
  5. Step 5: Solve for x
    x = 42,372,587,581.44/214,844.80
  6. Step 6: Final answer
    x = 197,224.17

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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.