Finding the Fourth Proportional to 243,589.68, 364,866.12 and 138,354.48
Calculator
Solution
The fourth proportional to 243,589.68, 364,866.12 and 138,354.48 is: 207,237.28
Step by Step Solution
- Step 1: Write the proportion equation
243,589.68 : 364,866.12 = 138,354.48 : x - Step 2: Convert to fraction form
243,589.68/364,866.12 = 138,354.48/x - Step 3: Cross multiply
243,589.68x = 364,866.12 × 138,354.48 - Step 4: Simplify right side
243,589.68x = 50,480,862,302.22 - Step 5: Solve for x
x = 50,480,862,302.22/243,589.68 - Step 6: Final answer
x = 207,237.28
Related Problems
Find fourth proportional to 121,794.84, 182,433.06 and 69,177.24
Half scale
Find fourth proportional to 487,179.36, 729,732.24 and 276,708.96
Double scale
Find fourth proportional to 243,590.68, 364,867.62 and 138,355.48
Similar ratio
Find fourth proportional to 365,384.52, 547,299.18 and 207,531.72
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.