Finding the Fourth Proportional to 209,915.37, 289,680.99 and 114,420.03
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Solution
The fourth proportional to 209,915.37, 289,680.99 and 114,420.03 is: 157,898.43
Step by Step Solution
- Step 1: Write the proportion equation
209,915.37 : 289,680.99 = 114,420.03 : x - Step 2: Convert to fraction form
209,915.37/289,680.99 = 114,420.03/x - Step 3: Cross multiply
209,915.37x = 289,680.99 × 114,420.03 - Step 4: Simplify right side
209,915.37x = 33,145,307,566.23 - Step 5: Solve for x
x = 33,145,307,566.23/209,915.37 - Step 6: Final answer
x = 157,898.43
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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.