Finding the Third Proportional to 385 and 635.50
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Solution
The third proportional to 385 and 635.50 is: 1,048.99
Step by Step Solution
- Step 1: Write the proportion equation
385 : 635.50 = 635.50 : x - Step 2: Convert to fraction form
385/635.50 = 635.50/x - Step 3: Cross multiply
385x = 635.50 × 635.50 - Step 4: Simplify right side
385x = 403,860.25 - Step 5: Solve for x
x = 403,860.25/385 - Step 6: Final answer
x = 1,048.99
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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.