Finding the Fourth Proportional to 329.99, 494.43 and 207.98
Calculator
Solution
The fourth proportional to 329.99, 494.43 and 207.98 is: 311.62
Step by Step Solution
- Step 1: Write the proportion equation
329.99 : 494.43 = 207.98 : x - Step 2: Convert to fraction form
329.99/494.43 = 207.98/x - Step 3: Cross multiply
329.99x = 494.43 × 207.98 - Step 4: Simplify right side
329.99x = 102,831.55 - Step 5: Solve for x
x = 102,831.55/329.99 - Step 6: Final answer
x = 311.62
Related Problems
Find fourth proportional to 165.00, 247.22 and 103.99
Half scale
Find fourth proportional to 659.98, 988.86 and 415.96
Double scale
Find fourth proportional to 330.99, 495.93 and 208.98
Similar ratio
Find fourth proportional to 494.99, 741.65 and 311.97
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.