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Finding the Fourth Proportional to 323,914.31, 486,035.54 and 218,511.84

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Solution

The fourth proportional to 323,914.31, 486,035.54 and 218,511.84 is: 327,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,914.31 : 486,035.54 = 218,511.84 : x
  2. Step 2: Convert to fraction form
    323,914.31/486,035.54 = 218,511.84/x
  3. Step 3: Cross multiply
    323,914.31x = 486,035.54 × 218,511.84
  4. Step 4: Simplify right side
    323,914.31x = 106,204,521,700.29
  5. Step 5: Solve for x
    x = 106,204,521,700.29/323,914.31
  6. Step 6: Final answer
    x = 327,878.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.