Finding the Fourth Proportional to 197.77, 272.96 and 193.18
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Solution
The fourth proportional to 197.77, 272.96 and 193.18 is: 266.62
Step by Step Solution
- Step 1: Write the proportion equation
197.77 : 272.96 = 193.18 : x - Step 2: Convert to fraction form
197.77/272.96 = 193.18/x - Step 3: Cross multiply
197.77x = 272.96 × 193.18 - Step 4: Simplify right side
197.77x = 52,730.41 - Step 5: Solve for x
x = 52,730.41/197.77 - Step 6: Final answer
x = 266.62
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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.