Finding the Fourth Proportional to 350.21, 525.44 and 157.70
Calculator
Solution
The fourth proportional to 350.21, 525.44 and 157.70 is: 236.60
Step by Step Solution
- Step 1: Write the proportion equation
350.21 : 525.44 = 157.70 : x - Step 2: Convert to fraction form
350.21/525.44 = 157.70/x - Step 3: Cross multiply
350.21x = 525.44 × 157.70 - Step 4: Simplify right side
350.21x = 82,858.47 - Step 5: Solve for x
x = 82,858.47/350.21 - Step 6: Final answer
x = 236.60
Related Problems
Find fourth proportional to 175.10, 262.72 and 78.85
Half scale
Find fourth proportional to 700.41, 1,050.87 and 315.39
Double scale
Find fourth proportional to 351.21, 526.94 and 158.70
Similar ratio
Find fourth proportional to 525.31, 788.15 and 236.54
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.