Home / 378,185.97-521,887.01-206,108.36

Finding the Fourth Proportional to 378,185.97, 521,887.01 and 206,108.36

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Solution

The fourth proportional to 378,185.97, 521,887.01 and 206,108.36 is: 284,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,185.97 : 521,887.01 = 206,108.36 : x
  2. Step 2: Convert to fraction form
    378,185.97/521,887.01 = 206,108.36/x
  3. Step 3: Cross multiply
    378,185.97x = 521,887.01 × 206,108.36
  4. Step 4: Simplify right side
    378,185.97x = 107,565,273,126.97
  5. Step 5: Solve for x
    x = 107,565,273,126.97/378,185.97
  6. Step 6: Final answer
    x = 284,424.28

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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.