Home / 308,785.10-426,042.44-177,930.56

Finding the Fourth Proportional to 308,785.10, 426,042.44 and 177,930.56

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Solution

The fourth proportional to 308,785.10, 426,042.44 and 177,930.56 is: 245,497.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,785.10 : 426,042.44 = 177,930.56 : x
  2. Step 2: Convert to fraction form
    308,785.10/426,042.44 = 177,930.56/x
  3. Step 3: Cross multiply
    308,785.10x = 426,042.44 × 177,930.56
  4. Step 4: Simplify right side
    308,785.10x = 75,805,969,932.97
  5. Step 5: Solve for x
    x = 75,805,969,932.97/308,785.10
  6. Step 6: Final answer
    x = 245,497.50

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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.