Home / 238,679.60-329,386.32-131,257.80

Finding the Fourth Proportional to 238,679.60, 329,386.32 and 131,257.80

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Solution

The fourth proportional to 238,679.60, 329,386.32 and 131,257.80 is: 181,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,679.60 : 329,386.32 = 131,257.80 : x
  2. Step 2: Convert to fraction form
    238,679.60/329,386.32 = 131,257.80/x
  3. Step 3: Cross multiply
    238,679.60x = 329,386.32 × 131,257.80
  4. Step 4: Simplify right side
    238,679.60x = 43,234,523,713.30
  5. Step 5: Solve for x
    x = 43,234,523,713.30/238,679.60
  6. Step 6: Final answer
    x = 181,140.43

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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.