Finding the Fourth Proportional to 345,985.16, 477,349.62 and 202,699.40
Calculator
Solution
The fourth proportional to 345,985.16, 477,349.62 and 202,699.40 is: 279,660.79
Step by Step Solution
- Step 1: Write the proportion equation
345,985.16 : 477,349.62 = 202,699.40 : x - Step 2: Convert to fraction form
345,985.16/477,349.62 = 202,699.40/x - Step 3: Cross multiply
345,985.16x = 477,349.62 × 202,699.40 - Step 4: Simplify right side
345,985.16x = 96,758,481,564.23 - Step 5: Solve for x
x = 96,758,481,564.23/345,985.16 - Step 6: Final answer
x = 279,660.79
Related Problems
Find fourth proportional to 172,992.58, 238,674.81 and 101,349.70
Half scale
Find fourth proportional to 691,970.32, 954,699.24 and 405,398.80
Double scale
Find fourth proportional to 345,986.16, 477,351 and 202,700.40
Similar ratio
Find fourth proportional to 518,977.74, 716,024.43 and 304,049.10
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.