Finding the Fourth Proportional to 243,745.98, 336,379.95 and 136,315.95
Calculator
Solution
The fourth proportional to 243,745.98, 336,379.95 and 136,315.95 is: 188,121.88
Step by Step Solution
- Step 1: Write the proportion equation
243,745.98 : 336,379.95 = 136,315.95 : x - Step 2: Convert to fraction form
243,745.98/336,379.95 = 136,315.95/x - Step 3: Cross multiply
243,745.98x = 336,379.95 × 136,315.95 - Step 4: Simplify right side
243,745.98x = 45,853,952,445.20 - Step 5: Solve for x
x = 45,853,952,445.20/243,745.98 - Step 6: Final answer
x = 188,121.88
Related Problems
Find fourth proportional to 121,872.99, 168,189.98 and 68,157.98
Half scale
Find fourth proportional to 487,491.96, 672,759.90 and 272,631.90
Double scale
Find fourth proportional to 243,746.98, 336,381.33 and 136,316.95
Similar ratio
Find fourth proportional to 365,618.97, 504,569.93 and 204,473.93
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.