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Finding the Fourth Proportional to 272.84, 409.25 and 192.34

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Solution

The fourth proportional to 272.84, 409.25 and 192.34 is: 288.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.84 : 409.25 = 192.34 : x
  2. Step 2: Convert to fraction form
    272.84/409.25 = 192.34/x
  3. Step 3: Cross multiply
    272.84x = 409.25 × 192.34
  4. Step 4: Simplify right side
    272.84x = 78,716.14
  5. Step 5: Solve for x
    x = 78,716.14/272.84
  6. Step 6: Final answer
    x = 288.51

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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.