Home / 380,839.85-525,614.94-219,663.41

Finding the Fourth Proportional to 380,839.85, 525,614.94 and 219,663.41

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Solution

The fourth proportional to 380,839.85, 525,614.94 and 219,663.41 is: 303,167.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,839.85 : 525,614.94 = 219,663.41 : x
  2. Step 2: Convert to fraction form
    380,839.85/525,614.94 = 219,663.41/x
  3. Step 3: Cross multiply
    380,839.85x = 525,614.94 × 219,663.41
  4. Step 4: Simplify right side
    380,839.85x = 115,458,370,067.35
  5. Step 5: Solve for x
    x = 115,458,370,067.35/380,839.85
  6. Step 6: Final answer
    x = 303,167.78

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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.