Finding the Fourth Proportional to 347,277.80, 520,916.70 and 207,309.80
Calculator
Solution
The fourth proportional to 347,277.80, 520,916.70 and 207,309.80 is: 310,964.70
Step by Step Solution
- Step 1: Write the proportion equation
347,277.80 : 520,916.70 = 207,309.80 : x - Step 2: Convert to fraction form
347,277.80/520,916.70 = 207,309.80/x - Step 3: Cross multiply
347,277.80x = 520,916.70 × 207,309.80 - Step 4: Simplify right side
347,277.80x = 107,991,136,893.66 - Step 5: Solve for x
x = 107,991,136,893.66/347,277.80 - Step 6: Final answer
x = 310,964.70
Related Problems
Find fourth proportional to 173,638.90, 260,458.35 and 103,654.90
Half scale
Find fourth proportional to 694,555.60, 1,041,833.40 and 414,619.60
Double scale
Find fourth proportional to 347,278.80, 520,918.20 and 207,310.80
Similar ratio
Find fourth proportional to 520,916.70, 781,375.05 and 310,964.70
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.