Finding the Fourth Proportional to 216.67, 298.99 and 201.97
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Solution
The fourth proportional to 216.67, 298.99 and 201.97 is: 278.70
Step by Step Solution
- Step 1: Write the proportion equation
216.67 : 298.99 = 201.97 : x - Step 2: Convert to fraction form
216.67/298.99 = 201.97/x - Step 3: Cross multiply
216.67x = 298.99 × 201.97 - Step 4: Simplify right side
216.67x = 60,387.01 - Step 5: Solve for x
x = 60,387.01/216.67 - Step 6: Final answer
x = 278.70
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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.