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Finding the Fourth Proportional to 351,922.56, 485,841.59 and 275,278.82

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Solution

The fourth proportional to 351,922.56, 485,841.59 and 275,278.82 is: 380,032.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,922.56 : 485,841.59 = 275,278.82 : x
  2. Step 2: Convert to fraction form
    351,922.56/485,841.59 = 275,278.82/x
  3. Step 3: Cross multiply
    351,922.56x = 485,841.59 × 275,278.82
  4. Step 4: Simplify right side
    351,922.56x = 133,741,895,796.52
  5. Step 5: Solve for x
    x = 133,741,895,796.52/351,922.56
  6. Step 6: Final answer
    x = 380,032.17

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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.