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Finding the Fourth Proportional to 249.66, 344.52 and 197.10

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Solution

The fourth proportional to 249.66, 344.52 and 197.10 is: 271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.66 : 344.52 = 197.10 : x
  2. Step 2: Convert to fraction form
    249.66/344.52 = 197.10/x
  3. Step 3: Cross multiply
    249.66x = 344.52 × 197.10
  4. Step 4: Simplify right side
    249.66x = 67,904.89
  5. Step 5: Solve for x
    x = 67,904.89/249.66
  6. Step 6: Final answer
    x = 271.99

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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.