Finding the Fourth Proportional to 238.40, 356.88 and 184
Calculator
Solution
The fourth proportional to 238.40, 356.88 and 184 is: 275.44
Step by Step Solution
- Step 1: Write the proportion equation
238.40 : 356.88 = 184 : x - Step 2: Convert to fraction form
238.40/356.88 = 184/x - Step 3: Cross multiply
238.40x = 356.88 × 184 - Step 4: Simplify right side
238.40x = 65,665.92 - Step 5: Solve for x
x = 65,665.92/238.40 - Step 6: Final answer
x = 275.44
Related Problems
Find fourth proportional to 119.20, 178.44 and 92
Half scale
Find fourth proportional to 476.80, 713.76 and 368
Double scale
Find fourth proportional to 239.40, 358.38 and 185
Similar ratio
Find fourth proportional to 357.60, 535.32 and 276
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.