Home / 238,972.83-329,771.16-131,540.64

Finding the Fourth Proportional to 238,972.83, 329,771.16 and 131,540.64

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Solution

The fourth proportional to 238,972.83, 329,771.16 and 131,540.64 is: 181,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,972.83 : 329,771.16 = 131,540.64 : x
  2. Step 2: Convert to fraction form
    238,972.83/329,771.16 = 131,540.64/x
  3. Step 3: Cross multiply
    238,972.83x = 329,771.16 × 131,540.64
  4. Step 4: Simplify right side
    238,972.83x = 43,378,309,439.94
  5. Step 5: Solve for x
    x = 43,378,309,439.94/238,972.83
  6. Step 6: Final answer
    x = 181,519.84

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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.