Finding the Fourth Proportional to 311,430, 429,774 and 177,294
Calculator
Solution
The fourth proportional to 311,430, 429,774 and 177,294 is: 244,666.06
Step by Step Solution
- Step 1: Write the proportion equation
311,430 : 429,774 = 177,294 : x - Step 2: Convert to fraction form
311,430/429,774 = 177,294/x - Step 3: Cross multiply
311,430x = 429,774 × 177,294 - Step 4: Simplify right side
311,430x = 76,196,351,556 - Step 5: Solve for x
x = 76,196,351,556/311,430 - Step 6: Final answer
x = 244,666.06
Related Problems
Find fourth proportional to 155,715, 214,887 and 88,647
Half scale
Find fourth proportional to 622,860, 859,548 and 354,588
Double scale
Find fourth proportional to 311,431, 429,775.38 and 177,295
Similar ratio
Find fourth proportional to 467,145, 644,661 and 265,941
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.