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Finding the Fourth Proportional to 246,411.27, 340,047.09 and 138,980.97

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Solution

The fourth proportional to 246,411.27, 340,047.09 and 138,980.97 is: 191,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,411.27 : 340,047.09 = 138,980.97 : x
  2. Step 2: Convert to fraction form
    246,411.27/340,047.09 = 138,980.97/x
  3. Step 3: Cross multiply
    246,411.27x = 340,047.09 × 138,980.97
  4. Step 4: Simplify right side
    246,411.27x = 47,260,074,413.88
  5. Step 5: Solve for x
    x = 47,260,074,413.88/246,411.27
  6. Step 6: Final answer
    x = 191,793.48

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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.