Finding the Fourth Proportional to 204,379.31, 306,647.00 and 79,730.03
Calculator
Solution
The fourth proportional to 204,379.31, 306,647.00 and 79,730.03 is: 119,625.49
Step by Step Solution
- Step 1: Write the proportion equation
204,379.31 : 306,647.00 = 79,730.03 : x - Step 2: Convert to fraction form
204,379.31/306,647.00 = 79,730.03/x - Step 3: Cross multiply
204,379.31x = 306,647.00 × 79,730.03 - Step 4: Simplify right side
204,379.31x = 24,448,975,176.37 - Step 5: Solve for x
x = 24,448,975,176.37/204,379.31 - Step 6: Final answer
x = 119,625.49
Related Problems
Find fourth proportional to 102,189.66, 153,323.50 and 39,865.02
Half scale
Find fourth proportional to 408,758.63, 613,294.00 and 159,460.07
Double scale
Find fourth proportional to 204,380.31, 306,648.50 and 79,731.03
Similar ratio
Find fourth proportional to 306,568.97, 459,970.50 and 119,595.05
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.