Finding the Third Proportional to 189,400.75 and 420,842.75
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Solution
The third proportional to 189,400.75 and 420,842.75 is: 935,099.89
Step by Step Solution
- Step 1: Write the proportion equation
189,400.75 : 420,842.75 = 420,842.75 : x - Step 2: Convert to fraction form
189,400.75/420,842.75 = 420,842.75/x - Step 3: Cross multiply
189,400.75x = 420,842.75 × 420,842.75 - Step 4: Simplify right side
189,400.75x = 177,108,620,227.56 - Step 5: Solve for x
x = 177,108,620,227.56/189,400.75 - Step 6: Final answer
x = 935,099.89
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Why These Related Problems?
These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.