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Finding the Fourth Proportional to 220,511.01, 330,932.97 and 161,499.68

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Solution

The fourth proportional to 220,511.01, 330,932.97 and 161,499.68 is: 242,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.01 : 330,932.97 = 161,499.68 : x
  2. Step 2: Convert to fraction form
    220,511.01/330,932.97 = 161,499.68/x
  3. Step 3: Cross multiply
    220,511.01x = 330,932.97 × 161,499.68
  4. Step 4: Simplify right side
    220,511.01x = 53,445,568,756.45
  5. Step 5: Solve for x
    x = 53,445,568,756.45/220,511.01
  6. Step 6: Final answer
    x = 242,371.43

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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.