Finding the Fourth Proportional to 424.64, 586.08 and 247.63
Calculator
Solution
The fourth proportional to 424.64, 586.08 and 247.63 is: 341.77
Step by Step Solution
- Step 1: Write the proportion equation
424.64 : 586.08 = 247.63 : x - Step 2: Convert to fraction form
424.64/586.08 = 247.63/x - Step 3: Cross multiply
424.64x = 586.08 × 247.63 - Step 4: Simplify right side
424.64x = 145,130.99 - Step 5: Solve for x
x = 145,130.99/424.64 - Step 6: Final answer
x = 341.77
Related Problems
Find fourth proportional to 212.32, 293.04 and 123.82
Half scale
Find fourth proportional to 849.28, 1,172.16 and 495.26
Double scale
Find fourth proportional to 425.64, 587.46 and 248.63
Similar ratio
Find fourth proportional to 636.96, 879.12 and 371.45
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.