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Finding the Fourth Proportional to 352,113.43, 485,350.62 and 275,500.39

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Solution

The fourth proportional to 352,113.43, 485,350.62 and 275,500.39 is: 379,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,113.43 : 485,350.62 = 275,500.39 : x
  2. Step 2: Convert to fraction form
    352,113.43/485,350.62 = 275,500.39/x
  3. Step 3: Cross multiply
    352,113.43x = 485,350.62 × 275,500.39
  4. Step 4: Simplify right side
    352,113.43x = 133,714,285,096.74
  5. Step 5: Solve for x
    x = 133,714,285,096.74/352,113.43
  6. Step 6: Final answer
    x = 379,747.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.