Finding the Fourth Proportional to 201,865.91, 302,845.76 and 68,747.31
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Solution
The fourth proportional to 201,865.91, 302,845.76 and 68,747.31 is: 103,136.94
Step by Step Solution
- Step 1: Write the proportion equation
201,865.91 : 302,845.76 = 68,747.31 : x - Step 2: Convert to fraction form
201,865.91/302,845.76 = 68,747.31/x - Step 3: Cross multiply
201,865.91x = 302,845.76 × 68,747.31 - Step 4: Simplify right side
201,865.91x = 20,819,831,258.97 - Step 5: Solve for x
x = 20,819,831,258.97/201,865.91 - Step 6: Final answer
x = 103,136.94
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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.