Finding the Third Proportional to 128,778.75 and 281,958.75
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Solution
The third proportional to 128,778.75 and 281,958.75 is: 617,343.60
Step by Step Solution
- Step 1: Write the proportion equation
128,778.75 : 281,958.75 = 281,958.75 : x - Step 2: Convert to fraction form
128,778.75/281,958.75 = 281,958.75/x - Step 3: Cross multiply
128,778.75x = 281,958.75 × 281,958.75 - Step 4: Simplify right side
128,778.75x = 79,500,736,701.56 - Step 5: Solve for x
x = 79,500,736,701.56/128,778.75 - Step 6: Final answer
x = 617,343.60
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.