Home / 378,177.08-521,877.39-206,096.43

Finding the Fourth Proportional to 378,177.08, 521,877.39 and 206,096.43

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Solution

The fourth proportional to 378,177.08, 521,877.39 and 206,096.43 is: 284,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,177.08 : 521,877.39 = 206,096.43 : x
  2. Step 2: Convert to fraction form
    378,177.08/521,877.39 = 206,096.43/x
  3. Step 3: Cross multiply
    378,177.08x = 521,877.39 × 206,096.43
  4. Step 4: Simplify right side
    378,177.08x = 107,557,066,976.72
  5. Step 5: Solve for x
    x = 107,557,066,976.72/378,177.08
  6. Step 6: Final answer
    x = 284,409.27

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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.