Home / 218,719.08-301,828.41-123,223.73

Finding the Fourth Proportional to 218,719.08, 301,828.41 and 123,223.73

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Solution

The fourth proportional to 218,719.08, 301,828.41 and 123,223.73 is: 170,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,719.08 : 301,828.41 = 123,223.73 : x
  2. Step 2: Convert to fraction form
    218,719.08/301,828.41 = 123,223.73/x
  3. Step 3: Cross multiply
    218,719.08x = 301,828.41 × 123,223.73
  4. Step 4: Simplify right side
    218,719.08x = 37,192,420,991.03
  5. Step 5: Solve for x
    x = 37,192,420,991.03/218,719.08
  6. Step 6: Final answer
    x = 170,046.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.