Finding the Third Proportional to 128,736.75 and 192,375.75
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Solution
The third proportional to 128,736.75 and 192,375.75 is: 287,473.69
Step by Step Solution
- Step 1: Write the proportion equation
128,736.75 : 192,375.75 = 192,375.75 : x - Step 2: Convert to fraction form
128,736.75/192,375.75 = 192,375.75/x - Step 3: Cross multiply
128,736.75x = 192,375.75 × 192,375.75 - Step 4: Simplify right side
128,736.75x = 37,008,429,188.06 - Step 5: Solve for x
x = 37,008,429,188.06/128,736.75 - Step 6: Final answer
x = 287,473.69
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.