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Finding the Fourth Proportional to 248.02, 342.33 and 143.14

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Solution

The fourth proportional to 248.02, 342.33 and 143.14 is: 197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.02 : 342.33 = 143.14 : x
  2. Step 2: Convert to fraction form
    248.02/342.33 = 143.14/x
  3. Step 3: Cross multiply
    248.02x = 342.33 × 143.14
  4. Step 4: Simplify right side
    248.02x = 49,002.54
  5. Step 5: Solve for x
    x = 49,002.54/248.02
  6. Step 6: Final answer
    x = 197.57

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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.