Finding the Fourth Proportional to 415,010.20, 622,515.30 and 204,620.80
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Solution
The fourth proportional to 415,010.20, 622,515.30 and 204,620.80 is: 306,931.20
Step by Step Solution
- Step 1: Write the proportion equation
415,010.20 : 622,515.30 = 204,620.80 : x - Step 2: Convert to fraction form
415,010.20/622,515.30 = 204,620.80/x - Step 3: Cross multiply
415,010.20x = 622,515.30 × 204,620.80 - Step 4: Simplify right side
415,010.20x = 127,379,578,698.24 - Step 5: Solve for x
x = 127,379,578,698.24/415,010.20 - Step 6: Final answer
x = 306,931.20
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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.