Home / 380,839.35-525,614.25-219,662.91

Finding the Fourth Proportional to 380,839.35, 525,614.25 and 219,662.91

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Solution

The fourth proportional to 380,839.35, 525,614.25 and 219,662.91 is: 303,167.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,839.35 : 525,614.25 = 219,662.91 : x
  2. Step 2: Convert to fraction form
    380,839.35/525,614.25 = 219,662.91/x
  3. Step 3: Cross multiply
    380,839.35x = 525,614.25 × 219,662.91
  4. Step 4: Simplify right side
    380,839.35x = 115,457,955,692.47
  5. Step 5: Solve for x
    x = 115,457,955,692.47/380,839.35
  6. Step 6: Final answer
    x = 303,167.09

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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.