Finding the Fourth Proportional to 206,387.49, 309,654.98 and 125,499.09
Calculator
Solution
The fourth proportional to 206,387.49, 309,654.98 and 125,499.09 is: 188,293.48
Step by Step Solution
- Step 1: Write the proportion equation
206,387.49 : 309,654.98 = 125,499.09 : x - Step 2: Convert to fraction form
206,387.49/309,654.98 = 125,499.09/x - Step 3: Cross multiply
206,387.49x = 309,654.98 × 125,499.09 - Step 4: Simplify right side
206,387.49x = 38,861,418,203.97 - Step 5: Solve for x
x = 38,861,418,203.97/206,387.49 - Step 6: Final answer
x = 188,293.48
Related Problems
Find fourth proportional to 103,193.75, 154,827.49 and 62,749.55
Half scale
Find fourth proportional to 412,774.98, 619,309.96 and 250,998.18
Double scale
Find fourth proportional to 206,388.49, 309,656.48 and 125,500.09
Similar ratio
Find fourth proportional to 309,581.24, 464,482.47 and 188,248.64
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.