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Finding the Fourth Proportional to 329.40, 454.13 and 273.17

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Solution

The fourth proportional to 329.40, 454.13 and 273.17 is: 376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.40 : 454.13 = 273.17 : x
  2. Step 2: Convert to fraction form
    329.40/454.13 = 273.17/x
  3. Step 3: Cross multiply
    329.40x = 454.13 × 273.17
  4. Step 4: Simplify right side
    329.40x = 124,055.10
  5. Step 5: Solve for x
    x = 124,055.10/329.40
  6. Step 6: Final answer
    x = 376.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.