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Finding the Fourth Proportional to 246,396.78, 340,027.50 and 138,966.58

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Solution

The fourth proportional to 246,396.78, 340,027.50 and 138,966.58 is: 191,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,396.78 : 340,027.50 = 138,966.58 : x
  2. Step 2: Convert to fraction form
    246,396.78/340,027.50 = 138,966.58/x
  3. Step 3: Cross multiply
    246,396.78x = 340,027.50 × 138,966.58
  4. Step 4: Simplify right side
    246,396.78x = 47,252,458,780.95
  5. Step 5: Solve for x
    x = 47,252,458,780.95/246,396.78
  6. Step 6: Final answer
    x = 191,773.85

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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.