Home / 220,921.62-331,375.83-61,007.28

Finding the Fourth Proportional to 220,921.62, 331,375.83 and 61,007.28

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Solution

The fourth proportional to 220,921.62, 331,375.83 and 61,007.28 is: 91,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,921.62 : 331,375.83 = 61,007.28 : x
  2. Step 2: Convert to fraction form
    220,921.62/331,375.83 = 61,007.28/x
  3. Step 3: Cross multiply
    220,921.62x = 331,375.83 × 61,007.28
  4. Step 4: Simplify right side
    220,921.62x = 20,216,338,046.04
  5. Step 5: Solve for x
    x = 20,216,338,046.04/220,921.62
  6. Step 6: Final answer
    x = 91,509.10

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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.