Finding the Fourth Proportional to 227.99, 314.55 and 158.09
Calculator
Solution
The fourth proportional to 227.99, 314.55 and 158.09 is: 218.11
Step by Step Solution
- Step 1: Write the proportion equation
227.99 : 314.55 = 158.09 : x - Step 2: Convert to fraction form
227.99/314.55 = 158.09/x - Step 3: Cross multiply
227.99x = 314.55 × 158.09 - Step 4: Simplify right side
227.99x = 49,727.21 - Step 5: Solve for x
x = 49,727.21/227.99 - Step 6: Final answer
x = 218.11
Related Problems
Find fourth proportional to 114.00, 157.28 and 79.05
Half scale
Find fourth proportional to 455.98, 629.10 and 316.18
Double scale
Find fourth proportional to 228.99, 315.93 and 159.09
Similar ratio
Find fourth proportional to 341.99, 471.83 and 237.14
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.