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Finding the Fourth Proportional to 320,757.76, 481,134.48 and 250,696

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Solution

The fourth proportional to 320,757.76, 481,134.48 and 250,696 is: 376,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,757.76 : 481,134.48 = 250,696 : x
  2. Step 2: Convert to fraction form
    320,757.76/481,134.48 = 250,696/x
  3. Step 3: Cross multiply
    320,757.76x = 481,134.48 × 250,696
  4. Step 4: Simplify right side
    320,757.76x = 120,618,489,598.08
  5. Step 5: Solve for x
    x = 120,618,489,598.08/320,757.76
  6. Step 6: Final answer
    x = 376,042.31

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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.