Finding the Fourth Proportional to 424.53, 636.93 and 180.99
Calculator
Solution
The fourth proportional to 424.53, 636.93 and 180.99 is: 271.54
Step by Step Solution
- Step 1: Write the proportion equation
424.53 : 636.93 = 180.99 : x - Step 2: Convert to fraction form
424.53/636.93 = 180.99/x - Step 3: Cross multiply
424.53x = 636.93 × 180.99 - Step 4: Simplify right side
424.53x = 115,277.96 - Step 5: Solve for x
x = 115,277.96/424.53 - Step 6: Final answer
x = 271.54
Related Problems
Find fourth proportional to 212.27, 318.47 and 90.50
Half scale
Find fourth proportional to 849.06, 1,273.86 and 361.98
Double scale
Find fourth proportional to 425.53, 638.43 and 181.99
Similar ratio
Find fourth proportional to 636.80, 955.40 and 271.49
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.