Finding the Fourth Proportional to 209,236.50, 313,992.99 and 98,437.14
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Solution
The fourth proportional to 209,236.50, 313,992.99 and 98,437.14 is: 147,720.75
Step by Step Solution
- Step 1: Write the proportion equation
209,236.50 : 313,992.99 = 98,437.14 : x - Step 2: Convert to fraction form
209,236.50/313,992.99 = 98,437.14/x - Step 3: Cross multiply
209,236.50x = 313,992.99 × 98,437.14 - Step 4: Simplify right side
209,236.50x = 30,908,571,915.65 - Step 5: Solve for x
x = 30,908,571,915.65/209,236.50 - Step 6: Final answer
x = 147,720.75
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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.