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Finding the Fourth Proportional to 163.74, 244.15 and 157.82

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Solution

The fourth proportional to 163.74, 244.15 and 157.82 is: 235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.74 : 244.15 = 157.82 : x
  2. Step 2: Convert to fraction form
    163.74/244.15 = 157.82/x
  3. Step 3: Cross multiply
    163.74x = 244.15 × 157.82
  4. Step 4: Simplify right side
    163.74x = 38,530.14
  5. Step 5: Solve for x
    x = 38,530.14/163.74
  6. Step 6: Final answer
    x = 235.32

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.