Home / 378,133.41-521,817.39-206,052.87

Finding the Fourth Proportional to 378,133.41, 521,817.39 and 206,052.87

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Solution

The fourth proportional to 378,133.41, 521,817.39 and 206,052.87 is: 284,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,133.41 : 521,817.39 = 206,052.87 : x
  2. Step 2: Convert to fraction form
    378,133.41/521,817.39 = 206,052.87/x
  3. Step 3: Cross multiply
    378,133.41x = 521,817.39 × 206,052.87
  4. Step 4: Simplify right side
    378,133.41x = 107,521,970,825.41
  5. Step 5: Solve for x
    x = 107,521,970,825.41/378,133.41
  6. Step 6: Final answer
    x = 284,349.30

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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.