Home / 378,371.25-522,153.41-206,291.07

Finding the Fourth Proportional to 378,371.25, 522,153.41 and 206,291.07

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Solution

The fourth proportional to 378,371.25, 522,153.41 and 206,291.07 is: 284,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,371.25 : 522,153.41 = 206,291.07 : x
  2. Step 2: Convert to fraction form
    378,371.25/522,153.41 = 206,291.07/x
  3. Step 3: Cross multiply
    378,371.25x = 522,153.41 × 206,291.07
  4. Step 4: Simplify right side
    378,371.25x = 107,715,584,621.59
  5. Step 5: Solve for x
    x = 107,715,584,621.59/378,371.25
  6. Step 6: Final answer
    x = 284,682.27

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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.