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Finding the Fourth Proportional to 238,940.56, 329,725.39 and 131,489.80

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Solution

The fourth proportional to 238,940.56, 329,725.39 and 131,489.80 is: 181,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,940.56 : 329,725.39 = 131,489.80 : x
  2. Step 2: Convert to fraction form
    238,940.56/329,725.39 = 131,489.80/x
  3. Step 3: Cross multiply
    238,940.56x = 329,725.39 × 131,489.80
  4. Step 4: Simplify right side
    238,940.56x = 43,355,525,586.02
  5. Step 5: Solve for x
    x = 43,355,525,586.02/238,940.56
  6. Step 6: Final answer
    x = 181,449.00

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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.