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Finding the Fourth Proportional to 329.87, 492.08 and 304.36

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Solution

The fourth proportional to 329.87, 492.08 and 304.36 is: 454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.87 : 492.08 = 304.36 : x
  2. Step 2: Convert to fraction form
    329.87/492.08 = 304.36/x
  3. Step 3: Cross multiply
    329.87x = 492.08 × 304.36
  4. Step 4: Simplify right side
    329.87x = 149,766.72
  5. Step 5: Solve for x
    x = 149,766.72/329.87
  6. Step 6: Final answer
    x = 454.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.