Home / 238,850.66-329,621.85-131,428.58

Finding the Fourth Proportional to 238,850.66, 329,621.85 and 131,428.58

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Solution

The fourth proportional to 238,850.66, 329,621.85 and 131,428.58 is: 181,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,850.66 : 329,621.85 = 131,428.58 : x
  2. Step 2: Convert to fraction form
    238,850.66/329,621.85 = 131,428.58/x
  3. Step 3: Cross multiply
    238,850.66x = 329,621.85 × 131,428.58
  4. Step 4: Simplify right side
    238,850.66x = 43,321,731,682.47
  5. Step 5: Solve for x
    x = 43,321,731,682.47/238,850.66
  6. Step 6: Final answer
    x = 181,375.81

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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.