Finding the Third Proportional to 129,789 and 281,610
Calculator
Solution
The third proportional to 129,789 and 281,610 is: 611,023.99
Step by Step Solution
- Step 1: Write the proportion equation
129,789 : 281,610 = 281,610 : x - Step 2: Convert to fraction form
129,789/281,610 = 281,610/x - Step 3: Cross multiply
129,789x = 281,610 × 281,610 - Step 4: Simplify right side
129,789x = 79,304,192,100 - Step 5: Solve for x
x = 79,304,192,100/129,789 - Step 6: Final answer
x = 611,023.99
Related Problems
Find third proportional to 64,894.50 and 140,805
Half scale
Find third proportional to 259,578 and 563,220
Double scale
Find third proportional to 129,791 and 281,614
Similar ratio
Find third proportional to 194,683.50 and 422,415
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.