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Finding the Fourth Proportional to 495.28, 743.27 and 221.23

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Solution

The fourth proportional to 495.28, 743.27 and 221.23 is: 332.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.28 : 743.27 = 221.23 : x
  2. Step 2: Convert to fraction form
    495.28/743.27 = 221.23/x
  3. Step 3: Cross multiply
    495.28x = 743.27 × 221.23
  4. Step 4: Simplify right side
    495.28x = 164,433.62
  5. Step 5: Solve for x
    x = 164,433.62/495.28
  6. Step 6: Final answer
    x = 332.00

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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.