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Finding the Fourth Proportional to 253,672.56, 350,067.62 and 138,953.48

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Solution

The fourth proportional to 253,672.56, 350,067.62 and 138,953.48 is: 191,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,672.56 : 350,067.62 = 138,953.48 : x
  2. Step 2: Convert to fraction form
    253,672.56/350,067.62 = 138,953.48/x
  3. Step 3: Cross multiply
    253,672.56x = 350,067.62 × 138,953.48
  4. Step 4: Simplify right side
    253,672.56x = 48,643,112,631.36
  5. Step 5: Solve for x
    x = 48,643,112,631.36/253,672.56
  6. Step 6: Final answer
    x = 191,755.52

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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.