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Finding the Fourth Proportional to 376,461.89, 519,517.79 and 223,530.62

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Solution

The fourth proportional to 376,461.89, 519,517.79 and 223,530.62 is: 308,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,461.89 : 519,517.79 = 223,530.62 : x
  2. Step 2: Convert to fraction form
    376,461.89/519,517.79 = 223,530.62/x
  3. Step 3: Cross multiply
    376,461.89x = 519,517.79 × 223,530.62
  4. Step 4: Simplify right side
    376,461.89x = 116,128,131,660.97
  5. Step 5: Solve for x
    x = 116,128,131,660.97/376,461.89
  6. Step 6: Final answer
    x = 308,472.48

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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.