Finding the Fourth Proportional to 197.44, 272.60 and 135.23
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Solution
The fourth proportional to 197.44, 272.60 and 135.23 is: 186.71
Step by Step Solution
- Step 1: Write the proportion equation
197.44 : 272.60 = 135.23 : x - Step 2: Convert to fraction form
197.44/272.60 = 135.23/x - Step 3: Cross multiply
197.44x = 272.60 × 135.23 - Step 4: Simplify right side
197.44x = 36,863.70 - Step 5: Solve for x
x = 36,863.70/197.44 - Step 6: Final answer
x = 186.71
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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.