Home / 419,853.30-579,375.75-238,540.06

Finding the Fourth Proportional to 419,853.30, 579,375.75 and 238,540.06

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Solution

The fourth proportional to 419,853.30, 579,375.75 and 238,540.06 is: 329,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,853.30 : 579,375.75 = 238,540.06 : x
  2. Step 2: Convert to fraction form
    419,853.30/579,375.75 = 238,540.06/x
  3. Step 3: Cross multiply
    419,853.30x = 579,375.75 × 238,540.06
  4. Step 4: Simplify right side
    419,853.30x = 138,204,326,167.55
  5. Step 5: Solve for x
    x = 138,204,326,167.55/419,853.30
  6. Step 6: Final answer
    x = 329,172.89

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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.