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Finding the Fourth Proportional to 323,753.55, 445,763.22 and 275,260.11

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Solution

The fourth proportional to 323,753.55, 445,763.22 and 275,260.11 is: 378,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,753.55 : 445,763.22 = 275,260.11 : x
  2. Step 2: Convert to fraction form
    323,753.55/445,763.22 = 275,260.11/x
  3. Step 3: Cross multiply
    323,753.55x = 445,763.22 × 275,260.11
  4. Step 4: Simplify right side
    323,753.55x = 122,700,832,971.15
  5. Step 5: Solve for x
    x = 122,700,832,971.15/323,753.55
  6. Step 6: Final answer
    x = 378,994.56

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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.