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Finding the Fourth Proportional to 336.96, 466.90 and 329.40

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Solution

The fourth proportional to 336.96, 466.90 and 329.40 is: 456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.96 : 466.90 = 329.40 : x
  2. Step 2: Convert to fraction form
    336.96/466.90 = 329.40/x
  3. Step 3: Cross multiply
    336.96x = 466.90 × 329.40
  4. Step 4: Simplify right side
    336.96x = 153,796.86
  5. Step 5: Solve for x
    x = 153,796.86/336.96
  6. Step 6: Final answer
    x = 456.42

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.