Finding the Third Proportional to 238 and 644.50
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Solution
The third proportional to 238 and 644.50 is: 1,745.30
Step by Step Solution
- Step 1: Write the proportion equation
238 : 644.50 = 644.50 : x - Step 2: Convert to fraction form
238/644.50 = 644.50/x - Step 3: Cross multiply
238x = 644.50 × 644.50 - Step 4: Simplify right side
238x = 415,380.25 - Step 5: Solve for x
x = 415,380.25/238 - Step 6: Final answer
x = 1,745.30
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These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.