Finding the Fourth Proportional to 233.10, 349.43 and 135.68
Calculator
Solution
The fourth proportional to 233.10, 349.43 and 135.68 is: 203.38
Step by Step Solution
- Step 1: Write the proportion equation
233.10 : 349.43 = 135.68 : x - Step 2: Convert to fraction form
233.10/349.43 = 135.68/x - Step 3: Cross multiply
233.10x = 349.43 × 135.68 - Step 4: Simplify right side
233.10x = 47,408.24 - Step 5: Solve for x
x = 47,408.24/233.10 - Step 6: Final answer
x = 203.38
Related Problems
Find fourth proportional to 116.55, 174.71 and 67.84
Half scale
Find fourth proportional to 466.20, 698.85 and 271.35
Double scale
Find fourth proportional to 234.10, 350.92 and 136.68
Similar ratio
Find fourth proportional to 349.65, 524.14 and 203.51
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.