Home / 214,243.86-321,387.11-79,344.03

Finding the Fourth Proportional to 214,243.86, 321,387.11 and 79,344.03

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Solution

The fourth proportional to 214,243.86, 321,387.11 and 79,344.03 is: 119,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,243.86 : 321,387.11 = 79,344.03 : x
  2. Step 2: Convert to fraction form
    214,243.86/321,387.11 = 79,344.03/x
  3. Step 3: Cross multiply
    214,243.86x = 321,387.11 × 79,344.03
  4. Step 4: Simplify right side
    214,243.86x = 25,500,148,497.45
  5. Step 5: Solve for x
    x = 25,500,148,497.45/214,243.86
  6. Step 6: Final answer
    x = 119,023.94

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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.