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Finding the Fourth Proportional to 266,997.21, 400,561.44 and 80,008.71

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Solution

The fourth proportional to 266,997.21, 400,561.44 and 80,008.71 is: 120,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,997.21 : 400,561.44 = 80,008.71 : x
  2. Step 2: Convert to fraction form
    266,997.21/400,561.44 = 80,008.71/x
  3. Step 3: Cross multiply
    266,997.21x = 400,561.44 × 80,008.71
  4. Step 4: Simplify right side
    266,997.21x = 32,048,404,090.14
  5. Step 5: Solve for x
    x = 32,048,404,090.14/266,997.21
  6. Step 6: Final answer
    x = 120,032.73

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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.