Finding the Fourth Proportional to 232,358.24, 320,641.08 and 128,987.12
Calculator
Solution
The fourth proportional to 232,358.24, 320,641.08 and 128,987.12 is: 177,994.85
Step by Step Solution
- Step 1: Write the proportion equation
232,358.24 : 320,641.08 = 128,987.12 : x - Step 2: Convert to fraction form
232,358.24/320,641.08 = 128,987.12/x - Step 3: Cross multiply
232,358.24x = 320,641.08 × 128,987.12 - Step 4: Simplify right side
232,358.24x = 41,358,569,462.89 - Step 5: Solve for x
x = 41,358,569,462.89/232,358.24 - Step 6: Final answer
x = 177,994.85
Related Problems
Find fourth proportional to 116,179.12, 160,320.54 and 64,493.56
Half scale
Find fourth proportional to 464,716.48, 641,282.16 and 257,974.24
Double scale
Find fourth proportional to 232,359.24, 320,642.46 and 128,988.12
Similar ratio
Find fourth proportional to 348,537.36, 480,961.62 and 193,480.68
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.