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Finding the Fourth Proportional to 206,369.92, 309,580.08 and 80,012.32

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Solution

The fourth proportional to 206,369.92, 309,580.08 and 80,012.32 is: 120,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,369.92 : 309,580.08 = 80,012.32 : x
  2. Step 2: Convert to fraction form
    206,369.92/309,580.08 = 80,012.32/x
  3. Step 3: Cross multiply
    206,369.92x = 309,580.08 × 80,012.32
  4. Step 4: Simplify right side
    206,369.92x = 24,770,220,426.59
  5. Step 5: Solve for x
    x = 24,770,220,426.59/206,369.92
  6. Step 6: Final answer
    x = 120,028.25

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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.