Finding the Fourth Proportional to 266.87, 368.57 and 214.99
Calculator
Solution
The fourth proportional to 266.87, 368.57 and 214.99 is: 296.92
Step by Step Solution
- Step 1: Write the proportion equation
266.87 : 368.57 = 214.99 : x - Step 2: Convert to fraction form
266.87/368.57 = 214.99/x - Step 3: Cross multiply
266.87x = 368.57 × 214.99 - Step 4: Simplify right side
266.87x = 79,238.48 - Step 5: Solve for x
x = 79,238.48/266.87 - Step 6: Final answer
x = 296.92
Related Problems
Find fourth proportional to 133.44, 184.29 and 107.49
Half scale
Find fourth proportional to 533.75, 737.15 and 429.98
Double scale
Find fourth proportional to 267.87, 369.95 and 215.99
Similar ratio
Find fourth proportional to 400.31, 552.86 and 322.48
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.