Finding the Third Proportional to 530 and 692.50
Calculator
Solution
The third proportional to 530 and 692.50 is: 904.82
Step by Step Solution
- Step 1: Write the proportion equation
530 : 692.50 = 692.50 : x - Step 2: Convert to fraction form
530/692.50 = 692.50/x - Step 3: Cross multiply
530x = 692.50 × 692.50 - Step 4: Simplify right side
530x = 479,556.25 - Step 5: Solve for x
x = 479,556.25/530 - Step 6: Final answer
x = 904.82
Related Problems
Find third proportional to 265 and 346.25
Half scale
Find third proportional to 1,060 and 1,385
Double scale
Find third proportional to 532 and 695
Similar ratio
Find third proportional to 795 and 1,038.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.