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Finding the Fourth Proportional to 230,680.39, 345,990.18 and 68,571

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Solution

The fourth proportional to 230,680.39, 345,990.18 and 68,571 is: 102,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,680.39 : 345,990.18 = 68,571 : x
  2. Step 2: Convert to fraction form
    230,680.39/345,990.18 = 68,571/x
  3. Step 3: Cross multiply
    230,680.39x = 345,990.18 × 68,571
  4. Step 4: Simplify right side
    230,680.39x = 23,724,892,632.78
  5. Step 5: Solve for x
    x = 23,724,892,632.78/230,680.39
  6. Step 6: Final answer
    x = 102,847.46

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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.