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Finding the Fourth Proportional to 248.76, 343.59 and 194.16

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Solution

The fourth proportional to 248.76, 343.59 and 194.16 is: 268.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.76 : 343.59 = 194.16 : x
  2. Step 2: Convert to fraction form
    248.76/343.59 = 194.16/x
  3. Step 3: Cross multiply
    248.76x = 343.59 × 194.16
  4. Step 4: Simplify right side
    248.76x = 66,711.43
  5. Step 5: Solve for x
    x = 66,711.43/248.76
  6. Step 6: Final answer
    x = 268.18

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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.