Home / 238,578.86-329,239.20-131,149.58

Finding the Fourth Proportional to 238,578.86, 329,239.20 and 131,149.58

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Solution

The fourth proportional to 238,578.86, 329,239.20 and 131,149.58 is: 180,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,578.86 : 329,239.20 = 131,149.58 : x
  2. Step 2: Convert to fraction form
    238,578.86/329,239.20 = 131,149.58/x
  3. Step 3: Cross multiply
    238,578.86x = 329,239.20 × 131,149.58
  4. Step 4: Simplify right side
    238,578.86x = 43,179,582,799.54
  5. Step 5: Solve for x
    x = 43,179,582,799.54/238,578.86
  6. Step 6: Final answer
    x = 180,986.63

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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.