Finding the Third Proportional to 348.50 and 399
Calculator
Solution
The third proportional to 348.50 and 399 is: 456.82
Step by Step Solution
- Step 1: Write the proportion equation
348.50 : 399 = 399 : x - Step 2: Convert to fraction form
348.50/399 = 399/x - Step 3: Cross multiply
348.50x = 399 × 399 - Step 4: Simplify right side
348.50x = 159,201 - Step 5: Solve for x
x = 159,201/348.50 - Step 6: Final answer
x = 456.82
Related Problems
Find third proportional to 174.25 and 199.50
Half scale
Find third proportional to 697 and 798
Double scale
Find third proportional to 351 and 401
Similar ratio
Find third proportional to 522.75 and 598.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.