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Finding the Fourth Proportional to 311,451.90, 466,792.38 and 221,351.00

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Solution

The fourth proportional to 311,451.90, 466,792.38 and 221,351.00 is: 331,752.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,451.90 : 466,792.38 = 221,351.00 : x
  2. Step 2: Convert to fraction form
    311,451.90/466,792.38 = 221,351.00/x
  3. Step 3: Cross multiply
    311,451.90x = 466,792.38 × 221,351.00
  4. Step 4: Simplify right side
    311,451.90x = 103,324,957,771.42
  5. Step 5: Solve for x
    x = 103,324,957,771.42/311,451.90
  6. Step 6: Final answer
    x = 331,752.54

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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.