Finding the Third Proportional to 121,415.50 and 183,816.75
Calculator
Solution
The third proportional to 121,415.50 and 183,816.75 is: 278,289.00
Step by Step Solution
- Step 1: Write the proportion equation
121,415.50 : 183,816.75 = 183,816.75 : x - Step 2: Convert to fraction form
121,415.50/183,816.75 = 183,816.75/x - Step 3: Cross multiply
121,415.50x = 183,816.75 × 183,816.75 - Step 4: Simplify right side
121,415.50x = 33,788,597,580.56 - Step 5: Solve for x
x = 33,788,597,580.56/121,415.50 - Step 6: Final answer
x = 278,289.00
Related Problems
Find third proportional to 60,707.75 and 91,908.38
Half scale
Find third proportional to 242,831 and 367,633.50
Double scale
Find third proportional to 121,418 and 183,820
Similar ratio
Find third proportional to 182,123.25 and 275,725.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.