Finding the Third Proportional to 128,720 and 204,728
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Solution
The third proportional to 128,720 and 204,728 is: 325,618.04
Step by Step Solution
- Step 1: Write the proportion equation
128,720 : 204,728 = 204,728 : x - Step 2: Convert to fraction form
128,720/204,728 = 204,728/x - Step 3: Cross multiply
128,720x = 204,728 × 204,728 - Step 4: Simplify right side
128,720x = 41,913,553,984 - Step 5: Solve for x
x = 41,913,553,984/128,720 - Step 6: Final answer
x = 325,618.04
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Why These Related Problems?
These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.