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Finding the Fourth Proportional to 254.03, 350.48 and 198.77

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Solution

The fourth proportional to 254.03, 350.48 and 198.77 is: 274.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.03 : 350.48 = 198.77 : x
  2. Step 2: Convert to fraction form
    254.03/350.48 = 198.77/x
  3. Step 3: Cross multiply
    254.03x = 350.48 × 198.77
  4. Step 4: Simplify right side
    254.03x = 69,663.65
  5. Step 5: Solve for x
    x = 69,663.65/254.03
  6. Step 6: Final answer
    x = 274.24

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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.