Finding the Third Proportional to 128,207.81 and 296,811.84
Calculator
Solution
The third proportional to 128,207.81 and 296,811.84 is: 687,144.32
Step by Step Solution
- Step 1: Write the proportion equation
128,207.81 : 296,811.84 = 296,811.84 : x - Step 2: Convert to fraction form
128,207.81/296,811.84 = 296,811.84/x - Step 3: Cross multiply
128,207.81x = 296,811.84 × 296,811.84 - Step 4: Simplify right side
128,207.81x = 88,097,270,590.27 - Step 5: Solve for x
x = 88,097,270,590.27/128,207.81 - Step 6: Final answer
x = 687,144.32
Related Problems
Find third proportional to 64,103.91 and 148,405.92
Half scale
Find third proportional to 256,415.63 and 593,623.69
Double scale
Find third proportional to 128,210 and 296,816
Similar ratio
Find third proportional to 192,311.72 and 445,217.77
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.