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Finding the Fourth Proportional to 226,644.78, 339,128.62 and 136,739.64

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Solution

The fourth proportional to 226,644.78, 339,128.62 and 136,739.64 is: 204,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,644.78 : 339,128.62 = 136,739.64 : x
  2. Step 2: Convert to fraction form
    226,644.78/339,128.62 = 136,739.64/x
  3. Step 3: Cross multiply
    226,644.78x = 339,128.62 × 136,739.64
  4. Step 4: Simplify right side
    226,644.78x = 46,372,326,342.38
  5. Step 5: Solve for x
    x = 46,372,326,342.38/226,644.78
  6. Step 6: Final answer
    x = 204,603.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.