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Finding the Fourth Proportional to 300,211.82, 450,832.90 and 266,553.90

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Solution

The fourth proportional to 300,211.82, 450,832.90 and 266,553.90 is: 400,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,211.82 : 450,832.90 = 266,553.90 : x
  2. Step 2: Convert to fraction form
    300,211.82/450,832.90 = 266,553.90/x
  3. Step 3: Cross multiply
    300,211.82x = 450,832.90 × 266,553.90
  4. Step 4: Simplify right side
    300,211.82x = 120,171,267,743.31
  5. Step 5: Solve for x
    x = 120,171,267,743.31/300,211.82
  6. Step 6: Final answer
    x = 400,288.26

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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.