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Finding the Fourth Proportional to 323.40, 484.56 and 227.01

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Solution

The fourth proportional to 323.40, 484.56 and 227.01 is: 340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.40 : 484.56 = 227.01 : x
  2. Step 2: Convert to fraction form
    323.40/484.56 = 227.01/x
  3. Step 3: Cross multiply
    323.40x = 484.56 × 227.01
  4. Step 4: Simplify right side
    323.40x = 109,999.97
  5. Step 5: Solve for x
    x = 109,999.97/323.40
  6. Step 6: Final answer
    x = 340.14

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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.