Finding the Fourth Proportional to 363.84, 502.08 and 208.62
Calculator
Solution
The fourth proportional to 363.84, 502.08 and 208.62 is: 287.88
Step by Step Solution
- Step 1: Write the proportion equation
363.84 : 502.08 = 208.62 : x - Step 2: Convert to fraction form
363.84/502.08 = 208.62/x - Step 3: Cross multiply
363.84x = 502.08 × 208.62 - Step 4: Simplify right side
363.84x = 104,743.93 - Step 5: Solve for x
x = 104,743.93/363.84 - Step 6: Final answer
x = 287.88
Related Problems
Find fourth proportional to 181.92, 251.04 and 104.31
Half scale
Find fourth proportional to 727.68, 1,004.16 and 417.24
Double scale
Find fourth proportional to 364.84, 503.46 and 209.62
Similar ratio
Find fourth proportional to 545.76, 753.12 and 312.93
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.