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Finding the Fourth Proportional to 246,630.97, 340,351.92 and 139,205.53

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Solution

The fourth proportional to 246,630.97, 340,351.92 and 139,205.53 is: 192,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,630.97 : 340,351.92 = 139,205.53 : x
  2. Step 2: Convert to fraction form
    246,630.97/340,351.92 = 139,205.53/x
  3. Step 3: Cross multiply
    246,630.97x = 340,351.92 × 139,205.53
  4. Step 4: Simplify right side
    246,630.97x = 47,378,869,410.12
  5. Step 5: Solve for x
    x = 47,378,869,410.12/246,630.97
  6. Step 6: Final answer
    x = 192,104.30

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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.