Finding the Third Proportional to 299,135.75 and 640,318.75
Calculator
Solution
The third proportional to 299,135.75 and 640,318.75 is: 1,370,642.26
Step by Step Solution
- Step 1: Write the proportion equation
299,135.75 : 640,318.75 = 640,318.75 : x - Step 2: Convert to fraction form
299,135.75/640,318.75 = 640,318.75/x - Step 3: Cross multiply
299,135.75x = 640,318.75 × 640,318.75 - Step 4: Simplify right side
299,135.75x = 410,008,101,601.56 - Step 5: Solve for x
x = 410,008,101,601.56/299,135.75 - Step 6: Final answer
x = 1,370,642.26
Related Problems
Find third proportional to 149,567.88 and 320,159.38
Half scale
Find third proportional to 598,271.50 and 1,280,637.50
Double scale
Find third proportional to 299,138 and 640,323
Similar ratio
Find third proportional to 448,703.63 and 960,478.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.