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Finding the Fourth Proportional to 506.70, 760.04 and 218.12

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Solution

The fourth proportional to 506.70, 760.04 and 218.12 is: 327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.70 : 760.04 = 218.12 : x
  2. Step 2: Convert to fraction form
    506.70/760.04 = 218.12/x
  3. Step 3: Cross multiply
    506.70x = 760.04 × 218.12
  4. Step 4: Simplify right side
    506.70x = 165,779.92
  5. Step 5: Solve for x
    x = 165,779.92/506.70
  6. Step 6: Final answer
    x = 327.18

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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.