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Finding the Fourth Proportional to 274.21, 411.73 and 236.11

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Solution

The fourth proportional to 274.21, 411.73 and 236.11 is: 354.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.21 : 411.73 = 236.11 : x
  2. Step 2: Convert to fraction form
    274.21/411.73 = 236.11/x
  3. Step 3: Cross multiply
    274.21x = 411.73 × 236.11
  4. Step 4: Simplify right side
    274.21x = 97,213.57
  5. Step 5: Solve for x
    x = 97,213.57/274.21
  6. Step 6: Final answer
    x = 354.52

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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.