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Finding the Fourth Proportional to 336.94, 506.01 and 321.55

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Solution

The fourth proportional to 336.94, 506.01 and 321.55 is: 482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.94 : 506.01 = 321.55 : x
  2. Step 2: Convert to fraction form
    336.94/506.01 = 321.55/x
  3. Step 3: Cross multiply
    336.94x = 506.01 × 321.55
  4. Step 4: Simplify right side
    336.94x = 162,704.99
  5. Step 5: Solve for x
    x = 162,704.99/336.94
  6. Step 6: Final answer
    x = 482.90

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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.