Finding the Third Proportional to 330 and 649.50
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Solution
The third proportional to 330 and 649.50 is: 1,278.33
Step by Step Solution
- Step 1: Write the proportion equation
330 : 649.50 = 649.50 : x - Step 2: Convert to fraction form
330/649.50 = 649.50/x - Step 3: Cross multiply
330x = 649.50 × 649.50 - Step 4: Simplify right side
330x = 421,850.25 - Step 5: Solve for x
x = 421,850.25/330 - Step 6: Final answer
x = 1,278.33
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These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.