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Finding the Fourth Proportional to 192.06, 266.19 and 189.18

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Solution

The fourth proportional to 192.06, 266.19 and 189.18 is: 262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.06 : 266.19 = 189.18 : x
  2. Step 2: Convert to fraction form
    192.06/266.19 = 189.18/x
  3. Step 3: Cross multiply
    192.06x = 266.19 × 189.18
  4. Step 4: Simplify right side
    192.06x = 50,357.11
  5. Step 5: Solve for x
    x = 50,357.11/192.06
  6. Step 6: Final answer
    x = 262.19

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.