Finding the Fourth Proportional to 355.49, 532.81 and 149.99
Calculator
Solution
The fourth proportional to 355.49, 532.81 and 149.99 is: 224.80
Step by Step Solution
- Step 1: Write the proportion equation
355.49 : 532.81 = 149.99 : x - Step 2: Convert to fraction form
355.49/532.81 = 149.99/x - Step 3: Cross multiply
355.49x = 532.81 × 149.99 - Step 4: Simplify right side
355.49x = 79,913.70 - Step 5: Solve for x
x = 79,913.70/355.49 - Step 6: Final answer
x = 224.80
Related Problems
Find fourth proportional to 177.74, 266.41 and 74.99
Half scale
Find fourth proportional to 710.98, 1,065.62 and 299.97
Double scale
Find fourth proportional to 356.49, 534.31 and 150.99
Similar ratio
Find fourth proportional to 533.23, 799.22 and 224.98
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.