Finding the Third Proportional to 128,157.75 and 280,995.75
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Solution
The third proportional to 128,157.75 and 280,995.75 is: 616,104.85
Step by Step Solution
- Step 1: Write the proportion equation
128,157.75 : 280,995.75 = 280,995.75 : x - Step 2: Convert to fraction form
128,157.75/280,995.75 = 280,995.75/x - Step 3: Cross multiply
128,157.75x = 280,995.75 × 280,995.75 - Step 4: Simplify right side
128,157.75x = 78,958,611,518.06 - Step 5: Solve for x
x = 78,958,611,518.06/128,157.75 - Step 6: Final answer
x = 616,104.85
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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.