Finding the Third Proportional to 129,236.25 and 279,228.75
Calculator
Solution
The third proportional to 129,236.25 and 279,228.75 is: 603,303.60
Step by Step Solution
- Step 1: Write the proportion equation
129,236.25 : 279,228.75 = 279,228.75 : x - Step 2: Convert to fraction form
129,236.25/279,228.75 = 279,228.75/x - Step 3: Cross multiply
129,236.25x = 279,228.75 × 279,228.75 - Step 4: Simplify right side
129,236.25x = 77,968,694,826.56 - Step 5: Solve for x
x = 77,968,694,826.56/129,236.25 - Step 6: Final answer
x = 603,303.60
Related Problems
Find third proportional to 64,618.13 and 139,614.38
Half scale
Find third proportional to 258,472.50 and 558,457.50
Double scale
Find third proportional to 129,238 and 279,233
Similar ratio
Find third proportional to 193,854.38 and 418,843.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.