Finding the Third Proportional to 135,121.50 and 210,336.75
Calculator
Solution
The third proportional to 135,121.50 and 210,336.75 is: 327,420.49
Step by Step Solution
- Step 1: Write the proportion equation
135,121.50 : 210,336.75 = 210,336.75 : x - Step 2: Convert to fraction form
135,121.50/210,336.75 = 210,336.75/x - Step 3: Cross multiply
135,121.50x = 210,336.75 × 210,336.75 - Step 4: Simplify right side
135,121.50x = 44,241,548,400.56 - Step 5: Solve for x
x = 44,241,548,400.56/135,121.50 - Step 6: Final answer
x = 327,420.49
Related Problems
Find third proportional to 67,560.75 and 105,168.38
Half scale
Find third proportional to 270,243 and 420,673.50
Double scale
Find third proportional to 135,124 and 210,340
Similar ratio
Find third proportional to 202,682.25 and 315,505.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.