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Finding the Fourth Proportional to 248.86, 343.26 and 192.99

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Solution

The fourth proportional to 248.86, 343.26 and 192.99 is: 266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.86 : 343.26 = 192.99 : x
  2. Step 2: Convert to fraction form
    248.86/343.26 = 192.99/x
  3. Step 3: Cross multiply
    248.86x = 343.26 × 192.99
  4. Step 4: Simplify right side
    248.86x = 66,243.58
  5. Step 5: Solve for x
    x = 66,243.58/248.86
  6. Step 6: Final answer
    x = 266.19

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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.