Finding the Fourth Proportional to 201,771.20, 302,656.80 and 54,027.20
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Solution
The fourth proportional to 201,771.20, 302,656.80 and 54,027.20 is: 81,040.80
Step by Step Solution
- Step 1: Write the proportion equation
201,771.20 : 302,656.80 = 54,027.20 : x - Step 2: Convert to fraction form
201,771.20/302,656.80 = 54,027.20/x - Step 3: Cross multiply
201,771.20x = 302,656.80 × 54,027.20 - Step 4: Simplify right side
201,771.20x = 16,351,699,464.96 - Step 5: Solve for x
x = 16,351,699,464.96/201,771.20 - Step 6: Final answer
x = 81,040.80
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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.