Finding the Fourth Proportional to 322.28, 444.99 and 198.11
Calculator
Solution
The fourth proportional to 322.28, 444.99 and 198.11 is: 273.54
Step by Step Solution
- Step 1: Write the proportion equation
322.28 : 444.99 = 198.11 : x - Step 2: Convert to fraction form
322.28/444.99 = 198.11/x - Step 3: Cross multiply
322.28x = 444.99 × 198.11 - Step 4: Simplify right side
322.28x = 88,156.97 - Step 5: Solve for x
x = 88,156.97/322.28 - Step 6: Final answer
x = 273.54
Related Problems
Find fourth proportional to 161.14, 222.50 and 99.06
Half scale
Find fourth proportional to 644.56, 889.98 and 396.22
Double scale
Find fourth proportional to 323.28, 446.37 and 199.11
Similar ratio
Find fourth proportional to 483.42, 667.49 and 297.17
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.