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Finding the Fourth Proportional to 200,266.70, 300,522.62 and 80,310.89

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Solution

The fourth proportional to 200,266.70, 300,522.62 and 80,310.89 is: 120,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,266.70 : 300,522.62 = 80,310.89 : x
  2. Step 2: Convert to fraction form
    200,266.70/300,522.62 = 80,310.89/x
  3. Step 3: Cross multiply
    200,266.70x = 300,522.62 × 80,310.89
  4. Step 4: Simplify right side
    200,266.70x = 24,135,240,029.42
  5. Step 5: Solve for x
    x = 24,135,240,029.42/200,266.70
  6. Step 6: Final answer
    x = 120,515.50

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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.