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Finding the Fourth Proportional to 329.64, 496.96 and 325.53

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Solution

The fourth proportional to 329.64, 496.96 and 325.53 is: 490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.64 : 496.96 = 325.53 : x
  2. Step 2: Convert to fraction form
    329.64/496.96 = 325.53/x
  3. Step 3: Cross multiply
    329.64x = 496.96 × 325.53
  4. Step 4: Simplify right side
    329.64x = 161,774.57
  5. Step 5: Solve for x
    x = 161,774.57/329.64
  6. Step 6: Final answer
    x = 490.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.