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Finding the Fourth Proportional to 506.63, 760.28 and 218.13

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Solution

The fourth proportional to 506.63, 760.28 and 218.13 is: 327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.63 : 760.28 = 218.13 : x
  2. Step 2: Convert to fraction form
    506.63/760.28 = 218.13/x
  3. Step 3: Cross multiply
    506.63x = 760.28 × 218.13
  4. Step 4: Simplify right side
    506.63x = 165,839.88
  5. Step 5: Solve for x
    x = 165,839.88/506.63
  6. Step 6: Final answer
    x = 327.34

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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.