Finding the Fourth Proportional to 237.99, 328.42 and 139.74
Calculator
Solution
The fourth proportional to 237.99, 328.42 and 139.74 is: 192.84
Step by Step Solution
- Step 1: Write the proportion equation
237.99 : 328.42 = 139.74 : x - Step 2: Convert to fraction form
237.99/328.42 = 139.74/x - Step 3: Cross multiply
237.99x = 328.42 × 139.74 - Step 4: Simplify right side
237.99x = 45,893.41 - Step 5: Solve for x
x = 45,893.41/237.99 - Step 6: Final answer
x = 192.84
Related Problems
Find fourth proportional to 119.00, 164.21 and 69.87
Half scale
Find fourth proportional to 475.98, 656.84 and 279.48
Double scale
Find fourth proportional to 238.99, 329.80 and 140.74
Similar ratio
Find fourth proportional to 356.99, 492.63 and 209.61
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.