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Finding the Fourth Proportional to 253,677.54, 350,062.56 and 138,956.69

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Solution

The fourth proportional to 253,677.54, 350,062.56 and 138,956.69 is: 191,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,677.54 : 350,062.56 = 138,956.69 : x
  2. Step 2: Convert to fraction form
    253,677.54/350,062.56 = 138,956.69/x
  3. Step 3: Cross multiply
    253,677.54x = 350,062.56 × 138,956.69
  4. Step 4: Simplify right side
    253,677.54x = 48,643,535,505.68
  5. Step 5: Solve for x
    x = 48,643,535,505.68/253,677.54
  6. Step 6: Final answer
    x = 191,753.42

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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.