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Finding the Fourth Proportional to 266.08, 399.94 and 194.26

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Solution

The fourth proportional to 266.08, 399.94 and 194.26 is: 291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.08 : 399.94 = 194.26 : x
  2. Step 2: Convert to fraction form
    266.08/399.94 = 194.26/x
  3. Step 3: Cross multiply
    266.08x = 399.94 × 194.26
  4. Step 4: Simplify right side
    266.08x = 77,692.34
  5. Step 5: Solve for x
    x = 77,692.34/266.08
  6. Step 6: Final answer
    x = 291.99

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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.