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Finding the Fourth Proportional to 394.07, 543.39 and 246.66

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Solution

The fourth proportional to 394.07, 543.39 and 246.66 is: 340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.07 : 543.39 = 246.66 : x
  2. Step 2: Convert to fraction form
    394.07/543.39 = 246.66/x
  3. Step 3: Cross multiply
    394.07x = 543.39 × 246.66
  4. Step 4: Simplify right side
    394.07x = 134,032.58
  5. Step 5: Solve for x
    x = 134,032.58/394.07
  6. Step 6: Final answer
    x = 340.13

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