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Finding the Fourth Proportional to 253,135.82, 379,647.43 and 73,181.94

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Solution

The fourth proportional to 253,135.82, 379,647.43 and 73,181.94 is: 109,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,135.82 : 379,647.43 = 73,181.94 : x
  2. Step 2: Convert to fraction form
    253,135.82/379,647.43 = 73,181.94/x
  3. Step 3: Cross multiply
    253,135.82x = 379,647.43 × 73,181.94
  4. Step 4: Simplify right side
    253,135.82x = 27,783,333,179.27
  5. Step 5: Solve for x
    x = 27,783,333,179.27/253,135.82
  6. Step 6: Final answer
    x = 109,756.63

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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.