Finding the Third Proportional to 210,156.75 and 288,991.13
Calculator
Solution
The third proportional to 210,156.75 and 288,991.13 is: 397,397.99
Step by Step Solution
- Step 1: Write the proportion equation
210,156.75 : 288,991.13 = 288,991.13 : x - Step 2: Convert to fraction form
210,156.75/288,991.13 = 288,991.13/x - Step 3: Cross multiply
210,156.75x = 288,991.13 × 288,991.13 - Step 4: Simplify right side
210,156.75x = 83,515,870,328.77 - Step 5: Solve for x
x = 83,515,870,328.77/210,156.75 - Step 6: Final answer
x = 397,397.99
Related Problems
Find third proportional to 105,078.38 and 144,495.56
Half scale
Find third proportional to 420,313.50 and 577,982.25
Double scale
Find third proportional to 210,159 and 288,994
Similar ratio
Find third proportional to 315,235.13 and 433,486.69
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.