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Finding the Fourth Proportional to 323,260.14, 445,978.36 and 322,761.72

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Solution

The fourth proportional to 323,260.14, 445,978.36 and 322,761.72 is: 445,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,260.14 : 445,978.36 = 322,761.72 : x
  2. Step 2: Convert to fraction form
    323,260.14/445,978.36 = 322,761.72/x
  3. Step 3: Cross multiply
    323,260.14x = 445,978.36 × 322,761.72
  4. Step 4: Simplify right side
    323,260.14x = 143,944,742,556.38
  5. Step 5: Solve for x
    x = 143,944,742,556.38/323,260.14
  6. Step 6: Final answer
    x = 445,290.73

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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.