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Finding the Fourth Proportional to 251,147.70, 376,773.45 and 82,678.13

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Solution

The fourth proportional to 251,147.70, 376,773.45 and 82,678.13 is: 124,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,147.70 : 376,773.45 = 82,678.13 : x
  2. Step 2: Convert to fraction form
    251,147.70/376,773.45 = 82,678.13/x
  3. Step 3: Cross multiply
    251,147.70x = 376,773.45 × 82,678.13
  4. Step 4: Simplify right side
    251,147.70x = 31,150,923,498.64
  5. Step 5: Solve for x
    x = 31,150,923,498.64/251,147.70
  6. Step 6: Final answer
    x = 124,034.28

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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.