Finding the Third Proportional to 129,768.75 and 278,943.75
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Solution
The third proportional to 129,768.75 and 278,943.75 is: 599,602.11
Step by Step Solution
- Step 1: Write the proportion equation
129,768.75 : 278,943.75 = 278,943.75 : x - Step 2: Convert to fraction form
129,768.75/278,943.75 = 278,943.75/x - Step 3: Cross multiply
129,768.75x = 278,943.75 × 278,943.75 - Step 4: Simplify right side
129,768.75x = 77,809,615,664.06 - Step 5: Solve for x
x = 77,809,615,664.06/129,768.75 - Step 6: Final answer
x = 599,602.11
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.