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Finding the Fourth Proportional to 266,887.45, 400,331.45 and 109,115.91

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Solution

The fourth proportional to 266,887.45, 400,331.45 and 109,115.91 is: 163,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,887.45 : 400,331.45 = 109,115.91 : x
  2. Step 2: Convert to fraction form
    266,887.45/400,331.45 = 109,115.91/x
  3. Step 3: Cross multiply
    266,887.45x = 400,331.45 × 109,115.91
  4. Step 4: Simplify right side
    266,887.45x = 43,682,530,468.37
  5. Step 5: Solve for x
    x = 43,682,530,468.37/266,887.45
  6. Step 6: Final answer
    x = 163,673.98

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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.