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Finding the Fourth Proportional to 206,234.40, 309,351.60 and 159,578.40

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Solution

The fourth proportional to 206,234.40, 309,351.60 and 159,578.40 is: 239,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,234.40 : 309,351.60 = 159,578.40 : x
  2. Step 2: Convert to fraction form
    206,234.40/309,351.60 = 159,578.40/x
  3. Step 3: Cross multiply
    206,234.40x = 309,351.60 × 159,578.40
  4. Step 4: Simplify right side
    206,234.40x = 49,365,833,365.44
  5. Step 5: Solve for x
    x = 49,365,833,365.44/206,234.40
  6. Step 6: Final answer
    x = 239,367.60

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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.