Home / 220,884.28-331,357.66-71,089.72

Finding the Fourth Proportional to 220,884.28, 331,357.66 and 71,089.72

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Solution

The fourth proportional to 220,884.28, 331,357.66 and 71,089.72 is: 106,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,884.28 : 331,357.66 = 71,089.72 : x
  2. Step 2: Convert to fraction form
    220,884.28/331,357.66 = 71,089.72/x
  3. Step 3: Cross multiply
    220,884.28x = 331,357.66 × 71,089.72
  4. Step 4: Simplify right side
    220,884.28x = 23,556,123,269.26
  5. Step 5: Solve for x
    x = 23,556,123,269.26/220,884.28
  6. Step 6: Final answer
    x = 106,644.63

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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.