Finding the Fourth Proportional to 253,286.71, 379,929.99 and 95,478.26
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Solution
The fourth proportional to 253,286.71, 379,929.99 and 95,478.26 is: 143,217.35
Step by Step Solution
- Step 1: Write the proportion equation
253,286.71 : 379,929.99 = 95,478.26 : x - Step 2: Convert to fraction form
253,286.71/379,929.99 = 95,478.26/x - Step 3: Cross multiply
253,286.71x = 379,929.99 × 95,478.26 - Step 4: Simplify right side
253,286.71x = 36,275,052,019.81 - Step 5: Solve for x
x = 36,275,052,019.81/253,286.71 - Step 6: Final answer
x = 143,217.35
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1.5x scale
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.