Home / 378,022.36-567,144.24-111,789.76

Finding the Fourth Proportional to 378,022.36, 567,144.24 and 111,789.76

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Solution

The fourth proportional to 378,022.36, 567,144.24 and 111,789.76 is: 167,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,022.36 : 567,144.24 = 111,789.76 : x
  2. Step 2: Convert to fraction form
    378,022.36/567,144.24 = 111,789.76/x
  3. Step 3: Cross multiply
    378,022.36x = 567,144.24 × 111,789.76
  4. Step 4: Simplify right side
    378,022.36x = 63,400,918,474.98
  5. Step 5: Solve for x
    x = 63,400,918,474.98/378,022.36
  6. Step 6: Final answer
    x = 167,717.38

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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.