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Finding the Third Proportional to 143.86 and 192.84

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Solution

The third proportional to 143.86 and 192.84 is: 258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.86 : 192.84 = 192.84 : x
  2. Step 2: Convert to fraction form
    143.86/192.84 = 192.84/x
  3. Step 3: Cross multiply
    143.86x = 192.84 × 192.84
  4. Step 4: Simplify right side
    143.86x = 37,188.71
  5. Step 5: Solve for x
    x = 37,188.71/143.86
  6. Step 6: Final answer
    x = 258.51

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.