Finding the Fourth Proportional to 265.44, 398.08 and 135.42
Calculator
Solution
The fourth proportional to 265.44, 398.08 and 135.42 is: 203.09
Step by Step Solution
- Step 1: Write the proportion equation
265.44 : 398.08 = 135.42 : x - Step 2: Convert to fraction form
265.44/398.08 = 135.42/x - Step 3: Cross multiply
265.44x = 398.08 × 135.42 - Step 4: Simplify right side
265.44x = 53,908.91 - Step 5: Solve for x
x = 53,908.91/265.44 - Step 6: Final answer
x = 203.09
Related Problems
Find fourth proportional to 132.72, 199.04 and 67.71
Half scale
Find fourth proportional to 530.89, 796.16 and 270.84
Double scale
Find fourth proportional to 266.44, 399.58 and 136.42
Similar ratio
Find fourth proportional to 398.17, 597.12 and 203.13
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.