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Finding the Fourth Proportional to 300,213.82, 450,835.90 and 266,555.90

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Solution

The fourth proportional to 300,213.82, 450,835.90 and 266,555.90 is: 400,291.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,213.82 : 450,835.90 = 266,555.90 : x
  2. Step 2: Convert to fraction form
    300,213.82/450,835.90 = 266,555.90/x
  3. Step 3: Cross multiply
    300,213.82x = 450,835.90 × 266,555.90
  4. Step 4: Simplify right side
    300,213.82x = 120,172,969,076.81
  5. Step 5: Solve for x
    x = 120,172,969,076.81/300,213.82
  6. Step 6: Final answer
    x = 400,291.26

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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.