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Finding the Fourth Proportional to 246,912.31, 340,766.64 and 139,489.26

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Solution

The fourth proportional to 246,912.31, 340,766.64 and 139,489.26 is: 192,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,912.31 : 340,766.64 = 139,489.26 : x
  2. Step 2: Convert to fraction form
    246,912.31/340,766.64 = 139,489.26/x
  3. Step 3: Cross multiply
    246,912.31x = 340,766.64 × 139,489.26
  4. Step 4: Simplify right side
    246,912.31x = 47,533,285,691.50
  5. Step 5: Solve for x
    x = 47,533,285,691.50/246,912.31
  6. Step 6: Final answer
    x = 192,510.80

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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.