Finding the Third Proportional to 137.50 and 231
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Solution
The third proportional to 137.50 and 231 is: 388.08
Step by Step Solution
- Step 1: Write the proportion equation
137.50 : 231 = 231 : x - Step 2: Convert to fraction form
137.50/231 = 231/x - Step 3: Cross multiply
137.50x = 231 × 231 - Step 4: Simplify right side
137.50x = 53,361 - Step 5: Solve for x
x = 53,361/137.50 - Step 6: Final answer
x = 388.08
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These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.