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Finding the Fourth Proportional to 254.75, 349.41 and 248.67

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Solution

The fourth proportional to 254.75, 349.41 and 248.67 is: 341.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.75 : 349.41 = 248.67 : x
  2. Step 2: Convert to fraction form
    254.75/349.41 = 248.67/x
  3. Step 3: Cross multiply
    254.75x = 349.41 × 248.67
  4. Step 4: Simplify right side
    254.75x = 86,888.72
  5. Step 5: Solve for x
    x = 86,888.72/254.75
  6. Step 6: Final answer
    x = 341.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.