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Finding the Fourth Proportional to 169.95, 234.18 and 143.64

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Solution

The fourth proportional to 169.95, 234.18 and 143.64 is: 197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.95 : 234.18 = 143.64 : x
  2. Step 2: Convert to fraction form
    169.95/234.18 = 143.64/x
  3. Step 3: Cross multiply
    169.95x = 234.18 × 143.64
  4. Step 4: Simplify right side
    169.95x = 33,637.62
  5. Step 5: Solve for x
    x = 33,637.62/169.95
  6. Step 6: Final answer
    x = 197.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.