Finding the Fourth Proportional to 231,096.97, 318,915.93 and 135,605.26
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Solution
The fourth proportional to 231,096.97, 318,915.93 and 135,605.26 is: 187,136.50
Step by Step Solution
- Step 1: Write the proportion equation
231,096.97 : 318,915.93 = 135,605.26 : x - Step 2: Convert to fraction form
231,096.97/318,915.93 = 135,605.26/x - Step 3: Cross multiply
231,096.97x = 318,915.93 × 135,605.26 - Step 4: Simplify right side
231,096.97x = 43,246,677,605.79 - Step 5: Solve for x
x = 43,246,677,605.79/231,096.97 - Step 6: Final answer
x = 187,136.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.