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Finding the Fourth Proportional to 248.46, 374.69 and 245.05

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Solution

The fourth proportional to 248.46, 374.69 and 245.05 is: 369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.46 : 374.69 = 245.05 : x
  2. Step 2: Convert to fraction form
    248.46/374.69 = 245.05/x
  3. Step 3: Cross multiply
    248.46x = 374.69 × 245.05
  4. Step 4: Simplify right side
    248.46x = 91,814.92
  5. Step 5: Solve for x
    x = 91,814.92/248.46
  6. Step 6: Final answer
    x = 369.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.