Finding the Fourth Proportional to 201,741.70, 301,834.95 and 131,757.70
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Solution
The fourth proportional to 201,741.70, 301,834.95 and 131,757.70 is: 197,128.70
Step by Step Solution
- Step 1: Write the proportion equation
201,741.70 : 301,834.95 = 131,757.70 : x - Step 2: Convert to fraction form
201,741.70/301,834.95 = 131,757.70/x - Step 3: Cross multiply
201,741.70x = 301,834.95 × 131,757.70 - Step 4: Simplify right side
201,741.70x = 39,769,078,791.62 - Step 5: Solve for x
x = 39,769,078,791.62/201,741.70 - Step 6: Final answer
x = 197,128.70
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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.