Finding the Fourth Proportional to 192,410.80, 288,616.20 and 129,425.20
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Solution
The fourth proportional to 192,410.80, 288,616.20 and 129,425.20 is: 194,137.80
Step by Step Solution
- Step 1: Write the proportion equation
192,410.80 : 288,616.20 = 129,425.20 : x - Step 2: Convert to fraction form
192,410.80/288,616.20 = 129,425.20/x - Step 3: Cross multiply
192,410.80x = 288,616.20 × 129,425.20 - Step 4: Simplify right side
192,410.80x = 37,354,209,408.24 - Step 5: Solve for x
x = 37,354,209,408.24/192,410.80 - Step 6: Final answer
x = 194,137.80
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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.