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Finding the Fourth Proportional to 248.06, 371.37 and 145.04

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Solution

The fourth proportional to 248.06, 371.37 and 145.04 is: 217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.06 : 371.37 = 145.04 : x
  2. Step 2: Convert to fraction form
    248.06/371.37 = 145.04/x
  3. Step 3: Cross multiply
    248.06x = 371.37 × 145.04
  4. Step 4: Simplify right side
    248.06x = 53,861.65
  5. Step 5: Solve for x
    x = 53,861.65/248.06
  6. Step 6: Final answer
    x = 217.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.