Home / 375,983.82-518,865.75-206,217.54

Finding the Fourth Proportional to 375,983.82, 518,865.75 and 206,217.54

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Solution

The fourth proportional to 375,983.82, 518,865.75 and 206,217.54 is: 284,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,983.82 : 518,865.75 = 206,217.54 : x
  2. Step 2: Convert to fraction form
    375,983.82/518,865.75 = 206,217.54/x
  3. Step 3: Cross multiply
    375,983.82x = 518,865.75 × 206,217.54
  4. Step 4: Simplify right side
    375,983.82x = 106,999,218,555.26
  5. Step 5: Solve for x
    x = 106,999,218,555.26/375,983.82
  6. Step 6: Final answer
    x = 284,584.64

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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.