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Finding the Fourth Proportional to 227,216.52, 338,609.91 and 220,375.80

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Solution

The fourth proportional to 227,216.52, 338,609.91 and 220,375.80 is: 328,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,216.52 : 338,609.91 = 220,375.80 : x
  2. Step 2: Convert to fraction form
    227,216.52/338,609.91 = 220,375.80/x
  3. Step 3: Cross multiply
    227,216.52x = 338,609.91 × 220,375.80
  4. Step 4: Simplify right side
    227,216.52x = 74,621,429,804.18
  5. Step 5: Solve for x
    x = 74,621,429,804.18/227,216.52
  6. Step 6: Final answer
    x = 328,415.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.