Finding the Fourth Proportional to 315,561.99, 435,512.79 and 177,745.41
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Solution
The fourth proportional to 315,561.99, 435,512.79 and 177,745.41 is: 245,309.64
Step by Step Solution
- Step 1: Write the proportion equation
315,561.99 : 435,512.79 = 177,745.41 : x - Step 2: Convert to fraction form
315,561.99/435,512.79 = 177,745.41/x - Step 3: Cross multiply
315,561.99x = 435,512.79 × 177,745.41 - Step 4: Simplify right side
315,561.99x = 77,410,399,418.79 - Step 5: Solve for x
x = 77,410,399,418.79/315,561.99 - Step 6: Final answer
x = 245,309.64
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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.