Home / 378,086.06-521,752.19-206,005.46

Finding the Fourth Proportional to 378,086.06, 521,752.19 and 206,005.46

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Solution

The fourth proportional to 378,086.06, 521,752.19 and 206,005.46 is: 284,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,086.06 : 521,752.19 = 206,005.46 : x
  2. Step 2: Convert to fraction form
    378,086.06/521,752.19 = 206,005.46/x
  3. Step 3: Cross multiply
    378,086.06x = 521,752.19 × 206,005.46
  4. Step 4: Simplify right side
    378,086.06x = 107,483,796,268.17
  5. Step 5: Solve for x
    x = 107,483,796,268.17/378,086.06
  6. Step 6: Final answer
    x = 284,283.95

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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.