Home / 214,444.90-321,570.15-81,280.90

Finding the Fourth Proportional to 214,444.90, 321,570.15 and 81,280.90

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Solution

The fourth proportional to 214,444.90, 321,570.15 and 81,280.90 is: 121,884.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,444.90 : 321,570.15 = 81,280.90 : x
  2. Step 2: Convert to fraction form
    214,444.90/321,570.15 = 81,280.90/x
  3. Step 3: Cross multiply
    214,444.90x = 321,570.15 × 81,280.90
  4. Step 4: Simplify right side
    214,444.90x = 26,137,511,205.14
  5. Step 5: Solve for x
    x = 26,137,511,205.14/214,444.90
  6. Step 6: Final answer
    x = 121,884.51

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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.