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Finding the Fourth Proportional to 301,093.70, 451,640.55 and 206,615.30

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Solution

The fourth proportional to 301,093.70, 451,640.55 and 206,615.30 is: 309,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,093.70 : 451,640.55 = 206,615.30 : x
  2. Step 2: Convert to fraction form
    301,093.70/451,640.55 = 206,615.30/x
  3. Step 3: Cross multiply
    301,093.70x = 451,640.55 × 206,615.30
  4. Step 4: Simplify right side
    301,093.70x = 93,315,847,730.42
  5. Step 5: Solve for x
    x = 93,315,847,730.42/301,093.70
  6. Step 6: Final answer
    x = 309,922.95

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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.