Finding the Fourth Proportional to 462.21, 637.25 and 355.99
Calculator
Solution
The fourth proportional to 462.21, 637.25 and 355.99 is: 490.80
Step by Step Solution
- Step 1: Write the proportion equation
462.21 : 637.25 = 355.99 : x - Step 2: Convert to fraction form
462.21/637.25 = 355.99/x - Step 3: Cross multiply
462.21x = 637.25 × 355.99 - Step 4: Simplify right side
462.21x = 226,853.74 - Step 5: Solve for x
x = 226,853.74/462.21 - Step 6: Final answer
x = 490.80
Related Problems
Find fourth proportional to 231.11, 318.62 and 178.00
Half scale
Find fourth proportional to 924.43, 1,274.50 and 711.98
Double scale
Find fourth proportional to 463.21, 638.63 and 356.99
Similar ratio
Find fourth proportional to 693.32, 955.87 and 533.99
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.