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Finding the Fourth Proportional to 394.16, 544.13 and 246.87

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Solution

The fourth proportional to 394.16, 544.13 and 246.87 is: 340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.16 : 544.13 = 246.87 : x
  2. Step 2: Convert to fraction form
    394.16/544.13 = 246.87/x
  3. Step 3: Cross multiply
    394.16x = 544.13 × 246.87
  4. Step 4: Simplify right side
    394.16x = 134,329.06
  5. Step 5: Solve for x
    x = 134,329.06/394.16
  6. Step 6: Final answer
    x = 340.80

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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.