Finding the Fourth Proportional to 196.68, 271.74 and 185.88
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Solution
The fourth proportional to 196.68, 271.74 and 185.88 is: 256.82
Step by Step Solution
- Step 1: Write the proportion equation
196.68 : 271.74 = 185.88 : x - Step 2: Convert to fraction form
196.68/271.74 = 185.88/x - Step 3: Cross multiply
196.68x = 271.74 × 185.88 - Step 4: Simplify right side
196.68x = 50,511.03 - Step 5: Solve for x
x = 50,511.03/196.68 - Step 6: Final answer
x = 256.82
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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.