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Finding the Fourth Proportional to 274.87, 412.33 and 92.23

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Solution

The fourth proportional to 274.87, 412.33 and 92.23 is: 138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.87 : 412.33 = 92.23 : x
  2. Step 2: Convert to fraction form
    274.87/412.33 = 92.23/x
  3. Step 3: Cross multiply
    274.87x = 412.33 × 92.23
  4. Step 4: Simplify right side
    274.87x = 38,026.90
  5. Step 5: Solve for x
    x = 38,026.90/274.87
  6. Step 6: Final answer
    x = 138.35

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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.