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Finding the Fourth Proportional to 253,272.48, 379,573.80 and 133,083.84

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Solution

The fourth proportional to 253,272.48, 379,573.80 and 133,083.84 is: 199,449.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,272.48 : 379,573.80 = 133,083.84 : x
  2. Step 2: Convert to fraction form
    253,272.48/379,573.80 = 133,083.84/x
  3. Step 3: Cross multiply
    253,272.48x = 379,573.80 × 133,083.84
  4. Step 4: Simplify right side
    253,272.48x = 50,515,138,867.39
  5. Step 5: Solve for x
    x = 50,515,138,867.39/253,272.48
  6. Step 6: Final answer
    x = 199,449.77

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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.