Finding the Fourth Proportional to 440,028.20, 660,036.72 and 140,504.99
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Solution
The fourth proportional to 440,028.20, 660,036.72 and 140,504.99 is: 210,755.70
Step by Step Solution
- Step 1: Write the proportion equation
440,028.20 : 660,036.72 = 140,504.99 : x - Step 2: Convert to fraction form
440,028.20/660,036.72 = 140,504.99/x - Step 3: Cross multiply
440,028.20x = 660,036.72 × 140,504.99 - Step 4: Simplify right side
440,028.20x = 92,738,449,443.05 - Step 5: Solve for x
x = 92,738,449,443.05/440,028.20 - Step 6: Final answer
x = 210,755.70
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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.