Finding the Third Proportional to 394 and 649.50
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Solution
The third proportional to 394 and 649.50 is: 1,070.69
Step by Step Solution
- Step 1: Write the proportion equation
394 : 649.50 = 649.50 : x - Step 2: Convert to fraction form
394/649.50 = 649.50/x - Step 3: Cross multiply
394x = 649.50 × 649.50 - Step 4: Simplify right side
394x = 421,850.25 - Step 5: Solve for x
x = 421,850.25/394 - Step 6: Final answer
x = 1,070.69
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These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.