Finding the Fourth Proportional to 201,761.40, 302,642.10 and 68,791.80
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Solution
The fourth proportional to 201,761.40, 302,642.10 and 68,791.80 is: 103,187.70
Step by Step Solution
- Step 1: Write the proportion equation
201,761.40 : 302,642.10 = 68,791.80 : x - Step 2: Convert to fraction form
201,761.40/302,642.10 = 68,791.80/x - Step 3: Cross multiply
201,761.40x = 302,642.10 × 68,791.80 - Step 4: Simplify right side
201,761.40x = 20,819,294,814.78 - Step 5: Solve for x
x = 20,819,294,814.78/201,761.40 - Step 6: Final answer
x = 103,187.70
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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.