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Finding the Fourth Proportional to 206,626.50, 285,121.76 and 115,961.67

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Solution

The fourth proportional to 206,626.50, 285,121.76 and 115,961.67 is: 160,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,626.50 : 285,121.76 = 115,961.67 : x
  2. Step 2: Convert to fraction form
    206,626.50/285,121.76 = 115,961.67/x
  3. Step 3: Cross multiply
    206,626.50x = 285,121.76 × 115,961.67
  4. Step 4: Simplify right side
    206,626.50x = 33,063,194,863.13
  5. Step 5: Solve for x
    x = 33,063,194,863.13/206,626.50
  6. Step 6: Final answer
    x = 160,014.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.