Finding the Third Proportional to 278 and 572
Calculator
Solution
The third proportional to 278 and 572 is: 1,176.92
Step by Step Solution
- Step 1: Write the proportion equation
278 : 572 = 572 : x - Step 2: Convert to fraction form
278/572 = 572/x - Step 3: Cross multiply
278x = 572 × 572 - Step 4: Simplify right side
278x = 327,184 - Step 5: Solve for x
x = 327,184/278 - Step 6: Final answer
x = 1,176.92
Related Problems
Find third proportional to 139 and 286
Half scale
Find third proportional to 556 and 1,144
Double scale
Find third proportional to 280 and 576
Similar ratio
Find third proportional to 417 and 858
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.