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Finding the Fourth Proportional to 245,098.73, 338,273.80 and 149,661.29

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Solution

The fourth proportional to 245,098.73, 338,273.80 and 149,661.29 is: 206,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,098.73 : 338,273.80 = 149,661.29 : x
  2. Step 2: Convert to fraction form
    245,098.73/338,273.80 = 149,661.29/x
  3. Step 3: Cross multiply
    245,098.73x = 338,273.80 × 149,661.29
  4. Step 4: Simplify right side
    245,098.73x = 50,626,493,752.73
  5. Step 5: Solve for x
    x = 50,626,493,752.73/245,098.73
  6. Step 6: Final answer
    x = 206,555.51

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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.