Finding the Fourth Proportional to 301.51, 416.21 and 202.08
Calculator
Solution
The fourth proportional to 301.51, 416.21 and 202.08 is: 278.96
Step by Step Solution
- Step 1: Write the proportion equation
301.51 : 416.21 = 202.08 : x - Step 2: Convert to fraction form
301.51/416.21 = 202.08/x - Step 3: Cross multiply
301.51x = 416.21 × 202.08 - Step 4: Simplify right side
301.51x = 84,106.68 - Step 5: Solve for x
x = 84,106.68/301.51 - Step 6: Final answer
x = 278.96
Related Problems
Find fourth proportional to 150.75, 208.11 and 101.04
Half scale
Find fourth proportional to 603.01, 832.42 and 404.16
Double scale
Find fourth proportional to 302.51, 417.59 and 203.08
Similar ratio
Find fourth proportional to 452.26, 624.32 and 303.12
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.