Finding the Fourth Proportional to 221,489.70, 332,283.15 and 71,736.90
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Solution
The fourth proportional to 221,489.70, 332,283.15 and 71,736.90 is: 107,621.09
Step by Step Solution
- Step 1: Write the proportion equation
221,489.70 : 332,283.15 = 71,736.90 : x - Step 2: Convert to fraction form
221,489.70/332,283.15 = 71,736.90/x - Step 3: Cross multiply
221,489.70x = 332,283.15 × 71,736.90 - Step 4: Simplify right side
221,489.70x = 23,836,963,103.24 - Step 5: Solve for x
x = 23,836,963,103.24/221,489.70 - Step 6: Final answer
x = 107,621.09
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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.