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Finding the Fourth Proportional to 492.24, 737.73 and 261.23

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Solution

The fourth proportional to 492.24, 737.73 and 261.23 is: 391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.24 : 737.73 = 261.23 : x
  2. Step 2: Convert to fraction form
    492.24/737.73 = 261.23/x
  3. Step 3: Cross multiply
    492.24x = 737.73 × 261.23
  4. Step 4: Simplify right side
    492.24x = 192,715.90
  5. Step 5: Solve for x
    x = 192,715.90/492.24
  6. Step 6: Final answer
    x = 391.51

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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.