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Finding the Fourth Proportional to 323.57, 486.61 and 246.72

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Solution

The fourth proportional to 323.57, 486.61 and 246.72 is: 371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.57 : 486.61 = 246.72 : x
  2. Step 2: Convert to fraction form
    323.57/486.61 = 246.72/x
  3. Step 3: Cross multiply
    323.57x = 486.61 × 246.72
  4. Step 4: Simplify right side
    323.57x = 120,056.26
  5. Step 5: Solve for x
    x = 120,056.26/323.57
  6. Step 6: Final answer
    x = 371.04

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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.