Finding the Fourth Proportional to 192,542.80, 288,808.80 and 87,361.60
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Solution
The fourth proportional to 192,542.80, 288,808.80 and 87,361.60 is: 131,039.95
Step by Step Solution
- Step 1: Write the proportion equation
192,542.80 : 288,808.80 = 87,361.60 : x - Step 2: Convert to fraction form
192,542.80/288,808.80 = 87,361.60/x - Step 3: Cross multiply
192,542.80x = 288,808.80 × 87,361.60 - Step 4: Simplify right side
192,542.80x = 25,230,798,862.08 - Step 5: Solve for x
x = 25,230,798,862.08/192,542.80 - Step 6: Final answer
x = 131,039.95
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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.