Finding the Third Proportional to 128,170,160 and 275,450,176
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Solution
The third proportional to 128,170,160 and 275,450,176 is: 591,969,296.59
Step by Step Solution
- Step 1: Write the proportion equation
128,170,160 : 275,450,176 = 275,450,176 : x - Step 2: Convert to fraction form
128,170,160/275,450,176 = 275,450,176/x - Step 3: Cross multiply
128,170,160x = 275,450,176 × 275,450,176 - Step 4: Simplify right side
128,170,160x = 75,872,799,458,430,976 - Step 5: Solve for x
x = 75,872,799,458,430,976/128,170,160 - Step 6: Final answer
x = 591,969,296.59
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.