Finding the Third Proportional to 128,516.25 and 278,481.75
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Solution
The third proportional to 128,516.25 and 278,481.75 is: 603,441.86
Step by Step Solution
- Step 1: Write the proportion equation
128,516.25 : 278,481.75 = 278,481.75 : x - Step 2: Convert to fraction form
128,516.25/278,481.75 = 278,481.75/x - Step 3: Cross multiply
128,516.25x = 278,481.75 × 278,481.75 - Step 4: Simplify right side
128,516.25x = 77,552,085,083.06 - Step 5: Solve for x
x = 77,552,085,083.06/128,516.25 - Step 6: Final answer
x = 603,441.86
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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.