Finding the Fourth Proportional to 192,865.40, 289,344.28 and 80,483.09
Calculator
Solution
The fourth proportional to 192,865.40, 289,344.28 and 80,483.09 is: 120,743.91
Step by Step Solution
- Step 1: Write the proportion equation
192,865.40 : 289,344.28 = 80,483.09 : x - Step 2: Convert to fraction form
192,865.40/289,344.28 = 80,483.09/x - Step 3: Cross multiply
192,865.40x = 289,344.28 × 80,483.09 - Step 4: Simplify right side
192,865.40x = 23,287,322,446.19 - Step 5: Solve for x
x = 23,287,322,446.19/192,865.40 - Step 6: Final answer
x = 120,743.91
Related Problems
Find fourth proportional to 96,432.70, 144,672.14 and 40,241.55
Half scale
Find fourth proportional to 385,730.81, 578,688.55 and 160,966.19
Double scale
Find fourth proportional to 192,866.40, 289,345.78 and 80,484.09
Similar ratio
Find fourth proportional to 289,298.11, 434,016.41 and 120,724.64
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.