Home / 214,198.40-321,206.52-87,751.28

Finding the Fourth Proportional to 214,198.40, 321,206.52 and 87,751.28

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Solution

The fourth proportional to 214,198.40, 321,206.52 and 87,751.28 is: 131,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,198.40 : 321,206.52 = 87,751.28 : x
  2. Step 2: Convert to fraction form
    214,198.40/321,206.52 = 87,751.28/x
  3. Step 3: Cross multiply
    214,198.40x = 321,206.52 × 87,751.28
  4. Step 4: Simplify right side
    214,198.40x = 28,186,283,274.35
  5. Step 5: Solve for x
    x = 28,186,283,274.35/214,198.40
  6. Step 6: Final answer
    x = 131,589.61

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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.