Home / 378,394.03-522,187.85-206,310.59

Finding the Fourth Proportional to 378,394.03, 522,187.85 and 206,310.59

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Solution

The fourth proportional to 378,394.03, 522,187.85 and 206,310.59 is: 284,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,394.03 : 522,187.85 = 206,310.59 : x
  2. Step 2: Convert to fraction form
    378,394.03/522,187.85 = 206,310.59/x
  3. Step 3: Cross multiply
    378,394.03x = 522,187.85 × 206,310.59
  4. Step 4: Simplify right side
    378,394.03x = 107,732,885,064.18
  5. Step 5: Solve for x
    x = 107,732,885,064.18/378,394.03
  6. Step 6: Final answer
    x = 284,710.85

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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.