Finding the Fourth Proportional to 207,794.97, 311,615.91 and 74,639.48
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Solution
The fourth proportional to 207,794.97, 311,615.91 and 74,639.48 is: 111,931.72
Step by Step Solution
- Step 1: Write the proportion equation
207,794.97 : 311,615.91 = 74,639.48 : x - Step 2: Convert to fraction form
207,794.97/311,615.91 = 74,639.48/x - Step 3: Cross multiply
207,794.97x = 311,615.91 × 74,639.48 - Step 4: Simplify right side
207,794.97x = 23,258,847,924.05 - Step 5: Solve for x
x = 23,258,847,924.05/207,794.97 - Step 6: Final answer
x = 111,931.72
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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.