Finding the Fourth Proportional to 204,415.20, 306,622.80 and 192,751.20
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Solution
The fourth proportional to 204,415.20, 306,622.80 and 192,751.20 is: 289,126.80
Step by Step Solution
- Step 1: Write the proportion equation
204,415.20 : 306,622.80 = 192,751.20 : x - Step 2: Convert to fraction form
204,415.20/306,622.80 = 192,751.20/x - Step 3: Cross multiply
204,415.20x = 306,622.80 × 192,751.20 - Step 4: Simplify right side
204,415.20x = 59,101,912,647.36 - Step 5: Solve for x
x = 59,101,912,647.36/204,415.20 - Step 6: Final answer
x = 289,126.80
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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.