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Finding the Fourth Proportional to 329.87, 494.35 and 248.63

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Solution

The fourth proportional to 329.87, 494.35 and 248.63 is: 372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.87 : 494.35 = 248.63 : x
  2. Step 2: Convert to fraction form
    329.87/494.35 = 248.63/x
  3. Step 3: Cross multiply
    329.87x = 494.35 × 248.63
  4. Step 4: Simplify right side
    329.87x = 122,907.15
  5. Step 5: Solve for x
    x = 122,907.15/329.87
  6. Step 6: Final answer
    x = 372.59

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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.