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Finding the Fourth Proportional to 303,311.90, 454,967.85 and 299,375.30

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Solution

The fourth proportional to 303,311.90, 454,967.85 and 299,375.30 is: 449,062.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,311.90 : 454,967.85 = 299,375.30 : x
  2. Step 2: Convert to fraction form
    303,311.90/454,967.85 = 299,375.30/x
  3. Step 3: Cross multiply
    303,311.90x = 454,967.85 × 299,375.30
  4. Step 4: Simplify right side
    303,311.90x = 136,206,136,584.11
  5. Step 5: Solve for x
    x = 136,206,136,584.11/303,311.90
  6. Step 6: Final answer
    x = 449,062.95

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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.