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Finding the Fourth Proportional to 251,754.73, 347,429.07 and 155,014.43

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Solution

The fourth proportional to 251,754.73, 347,429.07 and 155,014.43 is: 213,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,754.73 : 347,429.07 = 155,014.43 : x
  2. Step 2: Convert to fraction form
    251,754.73/347,429.07 = 155,014.43/x
  3. Step 3: Cross multiply
    251,754.73x = 347,429.07 × 155,014.43
  4. Step 4: Simplify right side
    251,754.73x = 53,856,517,514.33
  5. Step 5: Solve for x
    x = 53,856,517,514.33/251,754.73
  6. Step 6: Final answer
    x = 213,924.55

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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.