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Finding the Fourth Proportional to 463.36, 637.98 and 393.27

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Solution

The fourth proportional to 463.36, 637.98 and 393.27 is: 541.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.36 : 637.98 = 393.27 : x
  2. Step 2: Convert to fraction form
    463.36/637.98 = 393.27/x
  3. Step 3: Cross multiply
    463.36x = 637.98 × 393.27
  4. Step 4: Simplify right side
    463.36x = 250,896.92
  5. Step 5: Solve for x
    x = 250,896.92/463.36
  6. Step 6: Final answer
    x = 541.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.