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Finding the Fourth Proportional to 251,201.70, 376,693.20 and 82,656.90

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Solution

The fourth proportional to 251,201.70, 376,693.20 and 82,656.90 is: 123,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,201.70 : 376,693.20 = 82,656.90 : x
  2. Step 2: Convert to fraction form
    251,201.70/376,693.20 = 82,656.90/x
  3. Step 3: Cross multiply
    251,201.70x = 376,693.20 × 82,656.90
  4. Step 4: Simplify right side
    251,201.70x = 31,136,292,163.08
  5. Step 5: Solve for x
    x = 31,136,292,163.08/251,201.70
  6. Step 6: Final answer
    x = 123,949.37

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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.