Finding the Third Proportional to 309,159.50 and 671,193.50
Calculator
Solution
The third proportional to 309,159.50 and 671,193.50 is: 1,457,178.95
Step by Step Solution
- Step 1: Write the proportion equation
309,159.50 : 671,193.50 = 671,193.50 : x - Step 2: Convert to fraction form
309,159.50/671,193.50 = 671,193.50/x - Step 3: Cross multiply
309,159.50x = 671,193.50 × 671,193.50 - Step 4: Simplify right side
309,159.50x = 450,500,714,442.25 - Step 5: Solve for x
x = 450,500,714,442.25/309,159.50 - Step 6: Final answer
x = 1,457,178.95
Related Problems
Find third proportional to 154,579.75 and 335,596.75
Half scale
Find third proportional to 618,319 and 1,342,387
Double scale
Find third proportional to 309,162 and 671,198
Similar ratio
Find third proportional to 463,739.25 and 1,006,790.25
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.