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Finding the Fourth Proportional to 251,279.69, 376,975.11 and 82,793.21

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Solution

The fourth proportional to 251,279.69, 376,975.11 and 82,793.21 is: 124,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,279.69 : 376,975.11 = 82,793.21 : x
  2. Step 2: Convert to fraction form
    251,279.69/376,975.11 = 82,793.21/x
  3. Step 3: Cross multiply
    251,279.69x = 376,975.11 × 82,793.21
  4. Step 4: Simplify right side
    251,279.69x = 31,210,979,447.00
  5. Step 5: Solve for x
    x = 31,210,979,447.00/251,279.69
  6. Step 6: Final answer
    x = 124,208.13

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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.