Finding the Third Proportional to 189,209.67 and 315,338.06
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Solution
The third proportional to 189,209.67 and 315,338.06 is: 525,544.45
Step by Step Solution
- Step 1: Write the proportion equation
189,209.67 : 315,338.06 = 315,338.06 : x - Step 2: Convert to fraction form
189,209.67/315,338.06 = 315,338.06/x - Step 3: Cross multiply
189,209.67x = 315,338.06 × 315,338.06 - Step 4: Simplify right side
189,209.67x = 99,438,093,661.25 - Step 5: Solve for x
x = 99,438,093,661.25/189,209.67 - Step 6: Final answer
x = 525,544.45
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Why These Related Problems?
These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.