Finding the Fourth Proportional to 320,866.75, 442,912.76 and 186,730.75
Calculator
Solution
The fourth proportional to 320,866.75, 442,912.76 and 186,730.75 is: 257,756.32
Step by Step Solution
- Step 1: Write the proportion equation
320,866.75 : 442,912.76 = 186,730.75 : x - Step 2: Convert to fraction form
320,866.75/442,912.76 = 186,730.75/x - Step 3: Cross multiply
320,866.75x = 442,912.76 × 186,730.75 - Step 4: Simplify right side
320,866.75x = 82,705,431,859.37 - Step 5: Solve for x
x = 82,705,431,859.37/320,866.75 - Step 6: Final answer
x = 257,756.32
Related Problems
Find fourth proportional to 160,433.38, 221,456.38 and 93,365.38
Half scale
Find fourth proportional to 641,733.50, 885,825.52 and 373,461.50
Double scale
Find fourth proportional to 320,867.75, 442,914.14 and 186,731.75
Similar ratio
Find fourth proportional to 481,300.13, 664,369.14 and 280,096.13
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.