Home / 205,716.24-308,371.94-120,218.58

Finding the Fourth Proportional to 205,716.24, 308,371.94 and 120,218.58

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Solution

The fourth proportional to 205,716.24, 308,371.94 and 120,218.58 is: 180,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,716.24 : 308,371.94 = 120,218.58 : x
  2. Step 2: Convert to fraction form
    205,716.24/308,371.94 = 120,218.58/x
  3. Step 3: Cross multiply
    205,716.24x = 308,371.94 × 120,218.58
  4. Step 4: Simplify right side
    205,716.24x = 37,072,036,738.65
  5. Step 5: Solve for x
    x = 37,072,036,738.65/205,716.24
  6. Step 6: Final answer
    x = 180,209.58

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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.