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Finding the Fourth Proportional to 246,360.94, 339,967.76 and 138,940.97

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Solution

The fourth proportional to 246,360.94, 339,967.76 and 138,940.97 is: 191,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,360.94 : 339,967.76 = 138,940.97 : x
  2. Step 2: Convert to fraction form
    246,360.94/339,967.76 = 138,940.97/x
  3. Step 3: Cross multiply
    246,360.94x = 339,967.76 × 138,940.97
  4. Step 4: Simplify right side
    246,360.94x = 47,235,447,948.58
  5. Step 5: Solve for x
    x = 47,235,447,948.58/246,360.94
  6. Step 6: Final answer
    x = 191,732.70

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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.