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Finding the Fourth Proportional to 246,843.54, 340,647.39 and 137,943.09

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Solution

The fourth proportional to 246,843.54, 340,647.39 and 137,943.09 is: 190,363.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,843.54 : 340,647.39 = 137,943.09 : x
  2. Step 2: Convert to fraction form
    246,843.54/340,647.39 = 137,943.09/x
  3. Step 3: Cross multiply
    246,843.54x = 340,647.39 × 137,943.09
  4. Step 4: Simplify right side
    246,843.54x = 46,989,953,577.04
  5. Step 5: Solve for x
    x = 46,989,953,577.04/246,843.54
  6. Step 6: Final answer
    x = 190,363.31

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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.