Home / 238,685.19-329,387.94-131,255.97

Finding the Fourth Proportional to 238,685.19, 329,387.94 and 131,255.97

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Solution

The fourth proportional to 238,685.19, 329,387.94 and 131,255.97 is: 181,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,685.19 : 329,387.94 = 131,255.97 : x
  2. Step 2: Convert to fraction form
    238,685.19/329,387.94 = 131,255.97/x
  3. Step 3: Cross multiply
    238,685.19x = 329,387.94 × 131,255.97
  4. Step 4: Simplify right side
    238,685.19x = 43,234,133,571.00
  5. Step 5: Solve for x
    x = 43,234,133,571.00/238,685.19
  6. Step 6: Final answer
    x = 181,134.55

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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.