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Finding the Fourth Proportional to 206,247.90, 308,759.22 and 112,469.34

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Solution

The fourth proportional to 206,247.90, 308,759.22 and 112,469.34 is: 168,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,247.90 : 308,759.22 = 112,469.34 : x
  2. Step 2: Convert to fraction form
    206,247.90/308,759.22 = 112,469.34/x
  3. Step 3: Cross multiply
    206,247.90x = 308,759.22 × 112,469.34
  4. Step 4: Simplify right side
    206,247.90x = 34,725,945,692.31
  5. Step 5: Solve for x
    x = 34,725,945,692.31/206,247.90
  6. Step 6: Final answer
    x = 168,369.94

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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.