Finding the Fourth Proportional to 357,442.60, 493,501.74 and 221,620.84
Calculator
Solution
The fourth proportional to 357,442.60, 493,501.74 and 221,620.84 is: 305,979.95
Step by Step Solution
- Step 1: Write the proportion equation
357,442.60 : 493,501.74 = 221,620.84 : x - Step 2: Convert to fraction form
357,442.60/493,501.74 = 221,620.84/x - Step 3: Cross multiply
357,442.60x = 493,501.74 × 221,620.84 - Step 4: Simplify right side
357,442.60x = 109,370,270,160.26 - Step 5: Solve for x
x = 109,370,270,160.26/357,442.60 - Step 6: Final answer
x = 305,979.95
Related Problems
Find fourth proportional to 178,721.30, 246,750.87 and 110,810.42
Half scale
Find fourth proportional to 714,885.20, 987,003.48 and 443,241.68
Double scale
Find fourth proportional to 357,443.60, 493,503.12 and 221,621.84
Similar ratio
Find fourth proportional to 536,163.90, 740,252.61 and 332,431.26
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.