Finding the Fourth Proportional to 204.99, 307.08 and 132.90
Calculator
Solution
The fourth proportional to 204.99, 307.08 and 132.90 is: 199.09
Step by Step Solution
- Step 1: Write the proportion equation
204.99 : 307.08 = 132.90 : x - Step 2: Convert to fraction form
204.99/307.08 = 132.90/x - Step 3: Cross multiply
204.99x = 307.08 × 132.90 - Step 4: Simplify right side
204.99x = 40,810.93 - Step 5: Solve for x
x = 40,810.93/204.99 - Step 6: Final answer
x = 199.09
Related Problems
Find fourth proportional to 102.50, 153.54 and 66.45
Half scale
Find fourth proportional to 409.98, 614.16 and 265.80
Double scale
Find fourth proportional to 205.99, 308.58 and 133.90
Similar ratio
Find fourth proportional to 307.49, 460.62 and 199.35
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.