Finding the Fourth Proportional to 197.26, 295.88 and 81.68
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Solution
The fourth proportional to 197.26, 295.88 and 81.68 is: 122.51
Step by Step Solution
- Step 1: Write the proportion equation
197.26 : 295.88 = 81.68 : x - Step 2: Convert to fraction form
197.26/295.88 = 81.68/x - Step 3: Cross multiply
197.26x = 295.88 × 81.68 - Step 4: Simplify right side
197.26x = 24,166.00 - Step 5: Solve for x
x = 24,166.00/197.26 - Step 6: Final answer
x = 122.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.