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Finding the Fourth Proportional to 506.37, 758.37 and 321.30

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Solution

The fourth proportional to 506.37, 758.37 and 321.30 is: 481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.37 : 758.37 = 321.30 : x
  2. Step 2: Convert to fraction form
    506.37/758.37 = 321.30/x
  3. Step 3: Cross multiply
    506.37x = 758.37 × 321.30
  4. Step 4: Simplify right side
    506.37x = 243,664.28
  5. Step 5: Solve for x
    x = 243,664.28/506.37
  6. Step 6: Final answer
    x = 481.20

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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.