Finding the Fourth Proportional to 178.75, 267.99 and 70.57
Calculator
Solution
The fourth proportional to 178.75, 267.99 and 70.57 is: 105.80
Step by Step Solution
- Step 1: Write the proportion equation
178.75 : 267.99 = 70.57 : x - Step 2: Convert to fraction form
178.75/267.99 = 70.57/x - Step 3: Cross multiply
178.75x = 267.99 × 70.57 - Step 4: Simplify right side
178.75x = 18,912.05 - Step 5: Solve for x
x = 18,912.05/178.75 - Step 6: Final answer
x = 105.80
Related Problems
Find fourth proportional to 89.38, 134.00 and 35.29
Half scale
Find fourth proportional to 357.50, 535.98 and 141.14
Double scale
Find fourth proportional to 179.75, 269.49 and 71.57
Similar ratio
Find fourth proportional to 268.13, 401.99 and 105.86
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.