Finding the Third Proportional to 309 and 349.50
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Solution
The third proportional to 309 and 349.50 is: 395.31
Step by Step Solution
- Step 1: Write the proportion equation
309 : 349.50 = 349.50 : x - Step 2: Convert to fraction form
309/349.50 = 349.50/x - Step 3: Cross multiply
309x = 349.50 × 349.50 - Step 4: Simplify right side
309x = 122,150.25 - Step 5: Solve for x
x = 122,150.25/309 - Step 6: Final answer
x = 395.31
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These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.