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Finding the Fourth Proportional to 166,920, 250,380.32 and 40,560.36

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Solution

The fourth proportional to 166,920, 250,380.32 and 40,560.36 is: 60,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,920 : 250,380.32 = 40,560.36 : x
  2. Step 2: Convert to fraction form
    166,920/250,380.32 = 40,560.36/x
  3. Step 3: Cross multiply
    166,920x = 250,380.32 × 40,560.36
  4. Step 4: Simplify right side
    166,920x = 10,155,515,916.12
  5. Step 5: Solve for x
    x = 10,155,515,916.12/166,920
  6. Step 6: Final answer
    x = 60,840.62

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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.