Home / 378,180.42-521,889.12-206,098.44

Finding the Fourth Proportional to 378,180.42, 521,889.12 and 206,098.44

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Solution

The fourth proportional to 378,180.42, 521,889.12 and 206,098.44 is: 284,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,180.42 : 521,889.12 = 206,098.44 : x
  2. Step 2: Convert to fraction form
    378,180.42/521,889.12 = 206,098.44/x
  3. Step 3: Cross multiply
    378,180.42x = 521,889.12 × 206,098.44
  4. Step 4: Simplify right side
    378,180.42x = 107,560,533,484.97
  5. Step 5: Solve for x
    x = 107,560,533,484.97/378,180.42
  6. Step 6: Final answer
    x = 284,415.92

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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.