Finding the Third Proportional to 129,540.75 and 278,764.75
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Solution
The third proportional to 129,540.75 and 278,764.75 is: 599,886.80
Step by Step Solution
- Step 1: Write the proportion equation
129,540.75 : 278,764.75 = 278,764.75 : x - Step 2: Convert to fraction form
129,540.75/278,764.75 = 278,764.75/x - Step 3: Cross multiply
129,540.75x = 278,764.75 × 278,764.75 - Step 4: Simplify right side
129,540.75x = 77,709,785,842.56 - Step 5: Solve for x
x = 77,709,785,842.56/129,540.75 - Step 6: Final answer
x = 599,886.80
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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.