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Finding the Fourth Proportional to 323,028, 445,778.64 and 188,892

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Solution

The fourth proportional to 323,028, 445,778.64 and 188,892 is: 260,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,028 : 445,778.64 = 188,892 : x
  2. Step 2: Convert to fraction form
    323,028/445,778.64 = 188,892/x
  3. Step 3: Cross multiply
    323,028x = 445,778.64 × 188,892
  4. Step 4: Simplify right side
    323,028x = 84,204,018,866.88
  5. Step 5: Solve for x
    x = 84,204,018,866.88/323,028
  6. Step 6: Final answer
    x = 260,670.96

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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.