Home / 278,115.97-416,926.54-100,583.51

Finding the Fourth Proportional to 278,115.97, 416,926.54 and 100,583.51

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Solution

The fourth proportional to 278,115.97, 416,926.54 and 100,583.51 is: 150,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,115.97 : 416,926.54 = 100,583.51 : x
  2. Step 2: Convert to fraction form
    278,115.97/416,926.54 = 100,583.51/x
  3. Step 3: Cross multiply
    278,115.97x = 416,926.54 × 100,583.51
  4. Step 4: Simplify right side
    278,115.97x = 41,935,934,805.36
  5. Step 5: Solve for x
    x = 41,935,934,805.36/278,115.97
  6. Step 6: Final answer
    x = 150,785.78

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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.