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Finding the Fourth Proportional to 408,663.76, 563,958.79 and 227,383.33

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Solution

The fourth proportional to 408,663.76, 563,958.79 and 227,383.33 is: 313,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,663.76 : 563,958.79 = 227,383.33 : x
  2. Step 2: Convert to fraction form
    408,663.76/563,958.79 = 227,383.33/x
  3. Step 3: Cross multiply
    408,663.76x = 563,958.79 × 227,383.33
  4. Step 4: Simplify right side
    408,663.76x = 128,234,823,696.26
  5. Step 5: Solve for x
    x = 128,234,823,696.26/408,663.76
  6. Step 6: Final answer
    x = 313,790.55

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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.