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Finding the Fourth Proportional to 225,828.71, 340,792.46 and 218,299.96

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Solution

The fourth proportional to 225,828.71, 340,792.46 and 218,299.96 is: 329,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,828.71 : 340,792.46 = 218,299.96 : x
  2. Step 2: Convert to fraction form
    225,828.71/340,792.46 = 218,299.96/x
  3. Step 3: Cross multiply
    225,828.71x = 340,792.46 × 218,299.96
  4. Step 4: Simplify right side
    225,828.71x = 74,394,981,767.35
  5. Step 5: Solve for x
    x = 74,394,981,767.35/225,828.71
  6. Step 6: Final answer
    x = 329,431.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.