Home / 204,414.30-306,621.45-115,840.80

Finding the Fourth Proportional to 204,414.30, 306,621.45 and 115,840.80

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Solution

The fourth proportional to 204,414.30, 306,621.45 and 115,840.80 is: 173,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,414.30 : 306,621.45 = 115,840.80 : x
  2. Step 2: Convert to fraction form
    204,414.30/306,621.45 = 115,840.80/x
  3. Step 3: Cross multiply
    204,414.30x = 306,621.45 × 115,840.80
  4. Step 4: Simplify right side
    204,414.30x = 35,519,274,065.16
  5. Step 5: Solve for x
    x = 35,519,274,065.16/204,414.30
  6. Step 6: Final answer
    x = 173,761.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.