Finding the Fourth Proportional to 571.99, 858.14 and 207.09
Calculator
Solution
The fourth proportional to 571.99, 858.14 and 207.09 is: 310.68
Step by Step Solution
- Step 1: Write the proportion equation
571.99 : 858.14 = 207.09 : x - Step 2: Convert to fraction form
571.99/858.14 = 207.09/x - Step 3: Cross multiply
571.99x = 858.14 × 207.09 - Step 4: Simplify right side
571.99x = 177,706.89 - Step 5: Solve for x
x = 177,706.89/571.99 - Step 6: Final answer
x = 310.68
Related Problems
Find fourth proportional to 286.00, 429.07 and 103.54
Half scale
Find fourth proportional to 1,143.98, 1,716.27 and 414.17
Double scale
Find fourth proportional to 572.99, 859.64 and 208.09
Similar ratio
Find fourth proportional to 857.99, 1,287.20 and 310.63
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.