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Finding the Fourth Proportional to 329,481.49, 454,684.85 and 178,578.49

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Solution

The fourth proportional to 329,481.49, 454,684.85 and 178,578.49 is: 246,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,481.49 : 454,684.85 = 178,578.49 : x
  2. Step 2: Convert to fraction form
    329,481.49/454,684.85 = 178,578.49/x
  3. Step 3: Cross multiply
    329,481.49x = 454,684.85 × 178,578.49
  4. Step 4: Simplify right side
    329,481.49x = 81,196,933,938.88
  5. Step 5: Solve for x
    x = 81,196,933,938.88/329,481.49
  6. Step 6: Final answer
    x = 246,438.53

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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.