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Finding the Fourth Proportional to 246,224.72, 339,791.28 and 138,799.28

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Solution

The fourth proportional to 246,224.72, 339,791.28 and 138,799.28 is: 191,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,224.72 : 339,791.28 = 138,799.28 : x
  2. Step 2: Convert to fraction form
    246,224.72/339,791.28 = 138,799.28/x
  3. Step 3: Cross multiply
    246,224.72x = 339,791.28 × 138,799.28
  4. Step 4: Simplify right side
    246,224.72x = 47,162,785,014.28
  5. Step 5: Solve for x
    x = 47,162,785,014.28/246,224.72
  6. Step 6: Final answer
    x = 191,543.66

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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.