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Finding the Fourth Proportional to 223,352.80, 335,029.20 and 208,481.20

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Solution

The fourth proportional to 223,352.80, 335,029.20 and 208,481.20 is: 312,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,352.80 : 335,029.20 = 208,481.20 : x
  2. Step 2: Convert to fraction form
    223,352.80/335,029.20 = 208,481.20/x
  3. Step 3: Cross multiply
    223,352.80x = 335,029.20 × 208,481.20
  4. Step 4: Simplify right side
    223,352.80x = 69,847,289,651.04
  5. Step 5: Solve for x
    x = 69,847,289,651.04/223,352.80
  6. Step 6: Final answer
    x = 312,721.80

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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.