Finding the Third Proportional to 453 and 530
Calculator
Solution
The third proportional to 453 and 530 is: 620.09
Step by Step Solution
- Step 1: Write the proportion equation
453 : 530 = 530 : x - Step 2: Convert to fraction form
453/530 = 530/x - Step 3: Cross multiply
453x = 530 × 530 - Step 4: Simplify right side
453x = 280,900 - Step 5: Solve for x
x = 280,900/453 - Step 6: Final answer
x = 620.09
Related Problems
Find third proportional to 226.50 and 265
Half scale
Find third proportional to 906 and 1,060
Double scale
Find third proportional to 455 and 532
Similar ratio
Find third proportional to 679.50 and 795
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.