Home / 214,339.05-321,508.65-79,449.50

Finding the Fourth Proportional to 214,339.05, 321,508.65 and 79,449.50

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Solution

The fourth proportional to 214,339.05, 321,508.65 and 79,449.50 is: 119,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,339.05 : 321,508.65 = 79,449.50 : x
  2. Step 2: Convert to fraction form
    214,339.05/321,508.65 = 79,449.50/x
  3. Step 3: Cross multiply
    214,339.05x = 321,508.65 × 79,449.50
  4. Step 4: Simplify right side
    214,339.05x = 25,543,701,488.18
  5. Step 5: Solve for x
    x = 25,543,701,488.18/214,339.05
  6. Step 6: Final answer
    x = 119,174.28

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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.