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Finding the Fourth Proportional to 219.25, 302.75 and 191.94

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Solution

The fourth proportional to 219.25, 302.75 and 191.94 is: 265.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.25 : 302.75 = 191.94 : x
  2. Step 2: Convert to fraction form
    219.25/302.75 = 191.94/x
  3. Step 3: Cross multiply
    219.25x = 302.75 × 191.94
  4. Step 4: Simplify right side
    219.25x = 58,109.84
  5. Step 5: Solve for x
    x = 58,109.84/219.25
  6. Step 6: Final answer
    x = 265.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.