Finding the Fourth Proportional to 433.25, 649.99 and 125.13
Calculator
Solution
The fourth proportional to 433.25, 649.99 and 125.13 is: 187.73
Step by Step Solution
- Step 1: Write the proportion equation
433.25 : 649.99 = 125.13 : x - Step 2: Convert to fraction form
433.25/649.99 = 125.13/x - Step 3: Cross multiply
433.25x = 649.99 × 125.13 - Step 4: Simplify right side
433.25x = 81,332.19 - Step 5: Solve for x
x = 81,332.19/433.25 - Step 6: Final answer
x = 187.73
Related Problems
Find fourth proportional to 216.63, 325.00 and 62.56
Half scale
Find fourth proportional to 866.50, 1,299.98 and 250.26
Double scale
Find fourth proportional to 434.25, 651.49 and 126.13
Similar ratio
Find fourth proportional to 649.88, 974.99 and 187.69
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.