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Finding the Fourth Proportional to 248.30, 341.91 and 204.56

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Solution

The fourth proportional to 248.30, 341.91 and 204.56 is: 281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.30 : 341.91 = 204.56 : x
  2. Step 2: Convert to fraction form
    248.30/341.91 = 204.56/x
  3. Step 3: Cross multiply
    248.30x = 341.91 × 204.56
  4. Step 4: Simplify right side
    248.30x = 69,941.11
  5. Step 5: Solve for x
    x = 69,941.11/248.30
  6. Step 6: Final answer
    x = 281.68

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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.