Home / 220,933.20-331,448.40-71,180.40

Finding the Fourth Proportional to 220,933.20, 331,448.40 and 71,180.40

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Solution

The fourth proportional to 220,933.20, 331,448.40 and 71,180.40 is: 106,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,933.20 : 331,448.40 = 71,180.40 : x
  2. Step 2: Convert to fraction form
    220,933.20/331,448.40 = 71,180.40/x
  3. Step 3: Cross multiply
    220,933.20x = 331,448.40 × 71,180.40
  4. Step 4: Simplify right side
    220,933.20x = 23,592,629,691.36
  5. Step 5: Solve for x
    x = 23,592,629,691.36/220,933.20
  6. Step 6: Final answer
    x = 106,786.26

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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.