Finding the Fourth Proportional to 475,340.80, 655,948.80 and 274,124.80
Calculator
Solution
The fourth proportional to 475,340.80, 655,948.80 and 274,124.80 is: 378,279.82
Step by Step Solution
- Step 1: Write the proportion equation
475,340.80 : 655,948.80 = 274,124.80 : x - Step 2: Convert to fraction form
475,340.80/655,948.80 = 274,124.80/x - Step 3: Cross multiply
475,340.80x = 655,948.80 × 274,124.80 - Step 4: Simplify right side
475,340.80x = 179,811,833,610.24 - Step 5: Solve for x
x = 179,811,833,610.24/475,340.80 - Step 6: Final answer
x = 378,279.82
Related Problems
Find fourth proportional to 237,670.40, 327,974.40 and 137,062.40
Half scale
Find fourth proportional to 950,681.60, 1,311,897.60 and 548,249.60
Double scale
Find fourth proportional to 475,341.80, 655,950.18 and 274,125.80
Similar ratio
Find fourth proportional to 713,011.20, 983,923.20 and 411,187.20
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.