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Finding the Fourth Proportional to 221,727.92, 332,384.52 and 81,448.88

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Solution

The fourth proportional to 221,727.92, 332,384.52 and 81,448.88 is: 122,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,727.92 : 332,384.52 = 81,448.88 : x
  2. Step 2: Convert to fraction form
    221,727.92/332,384.52 = 81,448.88/x
  3. Step 3: Cross multiply
    221,727.92x = 332,384.52 × 81,448.88
  4. Step 4: Simplify right side
    221,727.92x = 27,072,346,883.34
  5. Step 5: Solve for x
    x = 27,072,346,883.34/221,727.92
  6. Step 6: Final answer
    x = 122,097.15

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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.