Home / 238,891.20-329,656.56-131,443.76

Finding the Fourth Proportional to 238,891.20, 329,656.56 and 131,443.76

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Solution

The fourth proportional to 238,891.20, 329,656.56 and 131,443.76 is: 181,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,891.20 : 329,656.56 = 131,443.76 : x
  2. Step 2: Convert to fraction form
    238,891.20/329,656.56 = 131,443.76/x
  3. Step 3: Cross multiply
    238,891.20x = 329,656.56 × 131,443.76
  4. Step 4: Simplify right side
    238,891.20x = 43,331,297,755.07
  5. Step 5: Solve for x
    x = 43,331,297,755.07/238,891.20
  6. Step 6: Final answer
    x = 181,385.07

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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.