Finding the Fourth Proportional to 207,915.11, 286,922.48 and 117,270.80
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Solution
The fourth proportional to 207,915.11, 286,922.48 and 117,270.80 is: 161,833.49
Step by Step Solution
- Step 1: Write the proportion equation
207,915.11 : 286,922.48 = 117,270.80 : x - Step 2: Convert to fraction form
207,915.11/286,922.48 = 117,270.80/x - Step 3: Cross multiply
207,915.11x = 286,922.48 × 117,270.80 - Step 4: Simplify right side
207,915.11x = 33,647,626,746.62 - Step 5: Solve for x
x = 33,647,626,746.62/207,915.11 - Step 6: Final answer
x = 161,833.49
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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.