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Finding the Fourth Proportional to 248.51, 342.55 and 195.97

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Solution

The fourth proportional to 248.51, 342.55 and 195.97 is: 270.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.51 : 342.55 = 195.97 : x
  2. Step 2: Convert to fraction form
    248.51/342.55 = 195.97/x
  3. Step 3: Cross multiply
    248.51x = 342.55 × 195.97
  4. Step 4: Simplify right side
    248.51x = 67,128.18
  5. Step 5: Solve for x
    x = 67,128.18/248.51
  6. Step 6: Final answer
    x = 270.12

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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.