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Finding the Fourth Proportional to 246,399, 340,028.92 and 138,969.96

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Solution

The fourth proportional to 246,399, 340,028.92 and 138,969.96 is: 191,777.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,399 : 340,028.92 = 138,969.96 : x
  2. Step 2: Convert to fraction form
    246,399/340,028.92 = 138,969.96/x
  3. Step 3: Cross multiply
    246,399x = 340,028.92 × 138,969.96
  4. Step 4: Simplify right side
    246,399x = 47,253,805,411.24
  5. Step 5: Solve for x
    x = 47,253,805,411.24/246,399
  6. Step 6: Final answer
    x = 191,777.59

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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.