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Finding the Fourth Proportional to 394.37, 544.23 and 224.02

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Solution

The fourth proportional to 394.37, 544.23 and 224.02 is: 309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.37 : 544.23 = 224.02 : x
  2. Step 2: Convert to fraction form
    394.37/544.23 = 224.02/x
  3. Step 3: Cross multiply
    394.37x = 544.23 × 224.02
  4. Step 4: Simplify right side
    394.37x = 121,918.40
  5. Step 5: Solve for x
    x = 121,918.40/394.37
  6. Step 6: Final answer
    x = 309.15

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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.