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Finding the Fourth Proportional to 306.84, 460.26 and 169.86

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Solution

The fourth proportional to 306.84, 460.26 and 169.86 is: 254.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.84 : 460.26 = 169.86 : x
  2. Step 2: Convert to fraction form
    306.84/460.26 = 169.86/x
  3. Step 3: Cross multiply
    306.84x = 460.26 × 169.86
  4. Step 4: Simplify right side
    306.84x = 78,179.76
  5. Step 5: Solve for x
    x = 78,179.76/306.84
  6. Step 6: Final answer
    x = 254.79

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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.