Home / 238,664.88-329,366-131,243.08

Finding the Fourth Proportional to 238,664.88, 329,366 and 131,243.08

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Solution

The fourth proportional to 238,664.88, 329,366 and 131,243.08 is: 181,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,664.88 : 329,366 = 131,243.08 : x
  2. Step 2: Convert to fraction form
    238,664.88/329,366 = 131,243.08/x
  3. Step 3: Cross multiply
    238,664.88x = 329,366 × 131,243.08
  4. Step 4: Simplify right side
    238,664.88x = 43,227,008,287.28
  5. Step 5: Solve for x
    x = 43,227,008,287.28/238,664.88
  6. Step 6: Final answer
    x = 181,120.11

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1.5x scale

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.