Finding the Fourth Proportional to 466.74, 644.09 and 270.21
Calculator
Solution
The fourth proportional to 466.74, 644.09 and 270.21 is: 372.88
Step by Step Solution
- Step 1: Write the proportion equation
466.74 : 644.09 = 270.21 : x - Step 2: Convert to fraction form
466.74/644.09 = 270.21/x - Step 3: Cross multiply
466.74x = 644.09 × 270.21 - Step 4: Simplify right side
466.74x = 174,038.21 - Step 5: Solve for x
x = 174,038.21/466.74 - Step 6: Final answer
x = 372.88
Related Problems
Find fourth proportional to 233.37, 322.04 and 135.11
Half scale
Find fourth proportional to 933.48, 1,288.17 and 540.42
Double scale
Find fourth proportional to 467.74, 645.46 and 271.21
Similar ratio
Find fourth proportional to 700.11, 966.13 and 405.32
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.