Finding the Fourth Proportional to 173.18, 239.08 and 133.75
Calculator
Solution
The fourth proportional to 173.18, 239.08 and 133.75 is: 184.64
Step by Step Solution
- Step 1: Write the proportion equation
173.18 : 239.08 = 133.75 : x - Step 2: Convert to fraction form
173.18/239.08 = 133.75/x - Step 3: Cross multiply
173.18x = 239.08 × 133.75 - Step 4: Simplify right side
173.18x = 31,976.05 - Step 5: Solve for x
x = 31,976.05/173.18 - Step 6: Final answer
x = 184.64
Related Problems
Find fourth proportional to 86.59, 119.54 and 66.87
Half scale
Find fourth proportional to 346.36, 478.15 and 267.50
Double scale
Find fourth proportional to 174.18, 240.46 and 134.75
Similar ratio
Find fourth proportional to 259.77, 358.61 and 200.62
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.