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Finding the Fourth Proportional to 285.88, 394.22 and 244.60

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Solution

The fourth proportional to 285.88, 394.22 and 244.60 is: 337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.88 : 394.22 = 244.60 : x
  2. Step 2: Convert to fraction form
    285.88/394.22 = 244.60/x
  3. Step 3: Cross multiply
    285.88x = 394.22 × 244.60
  4. Step 4: Simplify right side
    285.88x = 96,426.21
  5. Step 5: Solve for x
    x = 96,426.21/285.88
  6. Step 6: Final answer
    x = 337.30

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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.