Finding the Fourth Proportional to 207,618.77, 311,461.70 and 87,693.75
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Solution
The fourth proportional to 207,618.77, 311,461.70 and 87,693.75 is: 131,554.79
Step by Step Solution
- Step 1: Write the proportion equation
207,618.77 : 311,461.70 = 87,693.75 : x - Step 2: Convert to fraction form
207,618.77/311,461.70 = 87,693.75/x - Step 3: Cross multiply
207,618.77x = 311,461.70 × 87,693.75 - Step 4: Simplify right side
207,618.77x = 27,313,244,015.91 - Step 5: Solve for x
x = 27,313,244,015.91/207,618.77 - Step 6: Final answer
x = 131,554.79
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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.