Finding the Third Proportional to 235 and 438.50
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Solution
The third proportional to 235 and 438.50 is: 818.22
Step by Step Solution
- Step 1: Write the proportion equation
235 : 438.50 = 438.50 : x - Step 2: Convert to fraction form
235/438.50 = 438.50/x - Step 3: Cross multiply
235x = 438.50 × 438.50 - Step 4: Simplify right side
235x = 192,282.25 - Step 5: Solve for x
x = 192,282.25/235 - Step 6: Final answer
x = 818.22
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Why These Related Problems?
These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.