Home / 378,619.20-567,891.54-153,993.06

Finding the Fourth Proportional to 378,619.20, 567,891.54 and 153,993.06

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Solution

The fourth proportional to 378,619.20, 567,891.54 and 153,993.06 is: 230,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,619.20 : 567,891.54 = 153,993.06 : x
  2. Step 2: Convert to fraction form
    378,619.20/567,891.54 = 153,993.06/x
  3. Step 3: Cross multiply
    378,619.20x = 567,891.54 × 153,993.06
  4. Step 4: Simplify right side
    378,619.20x = 87,451,355,992.71
  5. Step 5: Solve for x
    x = 87,451,355,992.71/378,619.20
  6. Step 6: Final answer
    x = 230,974.44

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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.