Finding the Fourth Proportional to 207.26, 311.02 and 91.73
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Solution
The fourth proportional to 207.26, 311.02 and 91.73 is: 137.66
Step by Step Solution
- Step 1: Write the proportion equation
207.26 : 311.02 = 91.73 : x - Step 2: Convert to fraction form
207.26/311.02 = 91.73/x - Step 3: Cross multiply
207.26x = 311.02 × 91.73 - Step 4: Simplify right side
207.26x = 28,530.93 - Step 5: Solve for x
x = 28,530.93/207.26 - Step 6: Final answer
x = 137.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.