Finding the Fourth Proportional to 447.17, 616.68 and 299.99
Calculator
Solution
The fourth proportional to 447.17, 616.68 and 299.99 is: 413.71
Step by Step Solution
- Step 1: Write the proportion equation
447.17 : 616.68 = 299.99 : x - Step 2: Convert to fraction form
447.17/616.68 = 299.99/x - Step 3: Cross multiply
447.17x = 616.68 × 299.99 - Step 4: Simplify right side
447.17x = 184,997.83 - Step 5: Solve for x
x = 184,997.83/447.17 - Step 6: Final answer
x = 413.71
Related Problems
Find fourth proportional to 223.58, 308.34 and 150.00
Half scale
Find fourth proportional to 894.33, 1,233.36 and 599.98
Double scale
Find fourth proportional to 448.17, 618.06 and 300.99
Similar ratio
Find fourth proportional to 670.75, 925.02 and 449.99
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.