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Finding the Fourth Proportional to 266.98, 368.22 and 168.80

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Solution

The fourth proportional to 266.98, 368.22 and 168.80 is: 232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.98 : 368.22 = 168.80 : x
  2. Step 2: Convert to fraction form
    266.98/368.22 = 168.80/x
  3. Step 3: Cross multiply
    266.98x = 368.22 × 168.80
  4. Step 4: Simplify right side
    266.98x = 62,155.54
  5. Step 5: Solve for x
    x = 62,155.54/266.98
  6. Step 6: Final answer
    x = 232.81

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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.