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Finding the Fourth Proportional to 206,000.76, 308,923.38 and 95,115

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Solution

The fourth proportional to 206,000.76, 308,923.38 and 95,115 is: 142,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,000.76 : 308,923.38 = 95,115 : x
  2. Step 2: Convert to fraction form
    206,000.76/308,923.38 = 95,115/x
  3. Step 3: Cross multiply
    206,000.76x = 308,923.38 × 95,115
  4. Step 4: Simplify right side
    206,000.76x = 29,383,247,288.70
  5. Step 5: Solve for x
    x = 29,383,247,288.70/206,000.76
  6. Step 6: Final answer
    x = 142,636.60

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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.