Home / 238,939.56-329,724.02-131,488.80

Finding the Fourth Proportional to 238,939.56, 329,724.02 and 131,488.80

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Solution

The fourth proportional to 238,939.56, 329,724.02 and 131,488.80 is: 181,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,939.56 : 329,724.02 = 131,488.80 : x
  2. Step 2: Convert to fraction form
    238,939.56/329,724.02 = 131,488.80/x
  3. Step 3: Cross multiply
    238,939.56x = 329,724.02 × 131,488.80
  4. Step 4: Simplify right side
    238,939.56x = 43,355,015,063.53
  5. Step 5: Solve for x
    x = 43,355,015,063.53/238,939.56
  6. Step 6: Final answer
    x = 181,447.62

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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.