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Finding the Fourth Proportional to 266.06, 399 and 169.58

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Solution

The fourth proportional to 266.06, 399 and 169.58 is: 254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.06 : 399 = 169.58 : x
  2. Step 2: Convert to fraction form
    266.06/399 = 169.58/x
  3. Step 3: Cross multiply
    266.06x = 399 × 169.58
  4. Step 4: Simplify right side
    266.06x = 67,662.42
  5. Step 5: Solve for x
    x = 67,662.42/266.06
  6. Step 6: Final answer
    x = 254.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.