Finding the Fourth Proportional to 274,985.21, 378,769.73 and 194,272.58
Calculator
Solution
The fourth proportional to 274,985.21, 378,769.73 and 194,272.58 is: 267,594.65
Step by Step Solution
- Step 1: Write the proportion equation
274,985.21 : 378,769.73 = 194,272.58 : x - Step 2: Convert to fraction form
274,985.21/378,769.73 = 194,272.58/x - Step 3: Cross multiply
274,985.21x = 378,769.73 × 194,272.58 - Step 4: Simplify right side
274,985.21x = 73,584,572,648.56 - Step 5: Solve for x
x = 73,584,572,648.56/274,985.21 - Step 6: Final answer
x = 267,594.65
Related Problems
Find fourth proportional to 137,492.61, 189,384.86 and 97,136.29
Half scale
Find fourth proportional to 549,970.43, 757,539.45 and 388,545.17
Double scale
Find fourth proportional to 274,986.21, 378,771.10 and 194,273.58
Similar ratio
Find fourth proportional to 412,477.82, 568,154.59 and 291,408.87
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.