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Finding the Fourth Proportional to 329,402.20, 494,564.10 and 204,986.20

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Solution

The fourth proportional to 329,402.20, 494,564.10 and 204,986.20 is: 307,766.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,402.20 : 494,564.10 = 204,986.20 : x
  2. Step 2: Convert to fraction form
    329,402.20/494,564.10 = 204,986.20/x
  3. Step 3: Cross multiply
    329,402.20x = 494,564.10 × 204,986.20
  4. Step 4: Simplify right side
    329,402.20x = 101,378,815,515.42
  5. Step 5: Solve for x
    x = 101,378,815,515.42/329,402.20
  6. Step 6: Final answer
    x = 307,766.05

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1.5x scale

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.