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Finding the Fourth Proportional to 200,523.70, 300,823.48 and 80,589.97

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Solution

The fourth proportional to 200,523.70, 300,823.48 and 80,589.97 is: 120,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,523.70 : 300,823.48 = 80,589.97 : x
  2. Step 2: Convert to fraction form
    200,523.70/300,823.48 = 80,589.97/x
  3. Step 3: Cross multiply
    200,523.70x = 300,823.48 × 80,589.97
  4. Step 4: Simplify right side
    200,523.70x = 24,243,353,724.38
  5. Step 5: Solve for x
    x = 24,243,353,724.38/200,523.70
  6. Step 6: Final answer
    x = 120,900.19

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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.