Home / 213,414.20-320,027-113,550.72

Finding the Fourth Proportional to 213,414.20, 320,027 and 113,550.72

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Solution

The fourth proportional to 213,414.20, 320,027 and 113,550.72 is: 170,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,414.20 : 320,027 = 113,550.72 : x
  2. Step 2: Convert to fraction form
    213,414.20/320,027 = 113,550.72/x
  3. Step 3: Cross multiply
    213,414.20x = 320,027 × 113,550.72
  4. Step 4: Simplify right side
    213,414.20x = 36,339,296,269.44
  5. Step 5: Solve for x
    x = 36,339,296,269.44/213,414.20
  6. Step 6: Final answer
    x = 170,275.91

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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.