Finding the Fourth Proportional to 297,987.35, 446,971.11 and 129,507.84
Calculator
Solution
The fourth proportional to 297,987.35, 446,971.11 and 129,507.84 is: 194,257.45
Step by Step Solution
- Step 1: Write the proportion equation
297,987.35 : 446,971.11 = 129,507.84 : x - Step 2: Convert to fraction form
297,987.35/446,971.11 = 129,507.84/x - Step 3: Cross multiply
297,987.35x = 446,971.11 × 129,507.84 - Step 4: Simplify right side
297,987.35x = 57,886,262,998.50 - Step 5: Solve for x
x = 57,886,262,998.50/297,987.35 - Step 6: Final answer
x = 194,257.45
Related Problems
Find fourth proportional to 148,993.67, 223,485.56 and 64,753.92
Half scale
Find fourth proportional to 595,974.69, 893,942.22 and 259,015.68
Double scale
Find fourth proportional to 297,988.35, 446,972.61 and 129,508.84
Similar ratio
Find fourth proportional to 446,981.02, 670,456.67 and 194,261.76
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.