Finding the Fourth Proportional to 343.19, 473.49 and 193.79
Calculator
Solution
The fourth proportional to 343.19, 473.49 and 193.79 is: 267.36
Step by Step Solution
- Step 1: Write the proportion equation
343.19 : 473.49 = 193.79 : x - Step 2: Convert to fraction form
343.19/473.49 = 193.79/x - Step 3: Cross multiply
343.19x = 473.49 × 193.79 - Step 4: Simplify right side
343.19x = 91,755.26 - Step 5: Solve for x
x = 91,755.26/343.19 - Step 6: Final answer
x = 267.36
Related Problems
Find fourth proportional to 171.59, 236.75 and 96.89
Half scale
Find fourth proportional to 686.37, 946.98 and 387.57
Double scale
Find fourth proportional to 344.19, 474.87 and 194.79
Similar ratio
Find fourth proportional to 514.78, 710.24 and 290.68
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.