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Finding the Fourth Proportional to 251,147.74, 376,680.21 and 82,670.26

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Solution

The fourth proportional to 251,147.74, 376,680.21 and 82,670.26 is: 123,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,147.74 : 376,680.21 = 82,670.26 : x
  2. Step 2: Convert to fraction form
    251,147.74/376,680.21 = 82,670.26/x
  3. Step 3: Cross multiply
    251,147.74x = 376,680.21 × 82,670.26
  4. Step 4: Simplify right side
    251,147.74x = 31,140,250,897.55
  5. Step 5: Solve for x
    x = 31,140,250,897.55/251,147.74
  6. Step 6: Final answer
    x = 123,991.76

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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.