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Finding the Fourth Proportional to 352,112.43, 485,349.24 and 275,499.39

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Solution

The fourth proportional to 352,112.43, 485,349.24 and 275,499.39 is: 379,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,112.43 : 485,349.24 = 275,499.39 : x
  2. Step 2: Convert to fraction form
    352,112.43/485,349.24 = 275,499.39/x
  3. Step 3: Cross multiply
    352,112.43x = 485,349.24 × 275,499.39
  4. Step 4: Simplify right side
    352,112.43x = 133,713,419,556.96
  5. Step 5: Solve for x
    x = 133,713,419,556.96/352,112.43
  6. Step 6: Final answer
    x = 379,746.38

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1.5x scale

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.