Finding the Fourth Proportional to 578, 867 and 193.26
Calculator
Solution
The fourth proportional to 578, 867 and 193.26 is: 289.89
Step by Step Solution
- Step 1: Write the proportion equation
578 : 867 = 193.26 : x - Step 2: Convert to fraction form
578/867 = 193.26/x - Step 3: Cross multiply
578x = 867 × 193.26 - Step 4: Simplify right side
578x = 167,556.42 - Step 5: Solve for x
x = 167,556.42/578 - Step 6: Final answer
x = 289.89
Related Problems
Find fourth proportional to 289, 433.50 and 96.63
Half scale
Find fourth proportional to 1,156, 1,734 and 386.52
Double scale
Find fourth proportional to 579, 868.50 and 194.26
Similar ratio
Find fourth proportional to 867, 1,300.50 and 289.89
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.