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Finding the Fourth Proportional to 336.90, 506.07 and 324.75

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Solution

The fourth proportional to 336.90, 506.07 and 324.75 is: 487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.90 : 506.07 = 324.75 : x
  2. Step 2: Convert to fraction form
    336.90/506.07 = 324.75/x
  3. Step 3: Cross multiply
    336.90x = 506.07 × 324.75
  4. Step 4: Simplify right side
    336.90x = 164,346.23
  5. Step 5: Solve for x
    x = 164,346.23/336.90
  6. Step 6: Final answer
    x = 487.82

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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.