Finding the Fourth Proportional to 207,753.09, 311,518.85 and 107,812.65
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Solution
The fourth proportional to 207,753.09, 311,518.85 and 107,812.65 is: 161,661.48
Step by Step Solution
- Step 1: Write the proportion equation
207,753.09 : 311,518.85 = 107,812.65 : x - Step 2: Convert to fraction form
207,753.09/311,518.85 = 107,812.65/x - Step 3: Cross multiply
207,753.09x = 311,518.85 × 107,812.65 - Step 4: Simplify right side
207,753.09x = 33,585,672,204.39 - Step 5: Solve for x
x = 33,585,672,204.39/207,753.09 - Step 6: Final answer
x = 161,661.48
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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.