Finding the Fourth Proportional to 358.08, 536.68 and 126.84
Calculator
Solution
The fourth proportional to 358.08, 536.68 and 126.84 is: 190.10
Step by Step Solution
- Step 1: Write the proportion equation
358.08 : 536.68 = 126.84 : x - Step 2: Convert to fraction form
358.08/536.68 = 126.84/x - Step 3: Cross multiply
358.08x = 536.68 × 126.84 - Step 4: Simplify right side
358.08x = 68,072.49 - Step 5: Solve for x
x = 68,072.49/358.08 - Step 6: Final answer
x = 190.10
Related Problems
Find fourth proportional to 179.04, 268.34 and 63.42
Half scale
Find fourth proportional to 716.16, 1,073.36 and 253.68
Double scale
Find fourth proportional to 359.08, 538.18 and 127.84
Similar ratio
Find fourth proportional to 537.12, 805.02 and 190.26
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.