Finding the Third Proportional to 122,172.75 and 285,459.75
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Solution
The third proportional to 122,172.75 and 285,459.75 is: 666,983.99
Step by Step Solution
- Step 1: Write the proportion equation
122,172.75 : 285,459.75 = 285,459.75 : x - Step 2: Convert to fraction form
122,172.75/285,459.75 = 285,459.75/x - Step 3: Cross multiply
122,172.75x = 285,459.75 × 285,459.75 - Step 4: Simplify right side
122,172.75x = 81,487,268,870.06 - Step 5: Solve for x
x = 81,487,268,870.06/122,172.75 - Step 6: Final answer
x = 666,983.99
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Why These Related Problems?
These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.