Finding the Third Proportional to 128,088.75 and 273,912.75
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Solution
The third proportional to 128,088.75 and 273,912.75 is: 585,751.63
Step by Step Solution
- Step 1: Write the proportion equation
128,088.75 : 273,912.75 = 273,912.75 : x - Step 2: Convert to fraction form
128,088.75/273,912.75 = 273,912.75/x - Step 3: Cross multiply
128,088.75x = 273,912.75 × 273,912.75 - Step 4: Simplify right side
128,088.75x = 75,028,194,612.56 - Step 5: Solve for x
x = 75,028,194,612.56/128,088.75 - Step 6: Final answer
x = 585,751.63
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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.