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Finding the Fourth Proportional to 394.37, 544.62 and 341.66

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Solution

The fourth proportional to 394.37, 544.62 and 341.66 is: 471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.37 : 544.62 = 341.66 : x
  2. Step 2: Convert to fraction form
    394.37/544.62 = 341.66/x
  3. Step 3: Cross multiply
    394.37x = 544.62 × 341.66
  4. Step 4: Simplify right side
    394.37x = 186,072.15
  5. Step 5: Solve for x
    x = 186,072.15/394.37
  6. Step 6: Final answer
    x = 471.83

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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.