Finding the Fourth Proportional to 201,842.44, 278,564.46 and 111,207.70
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Solution
The fourth proportional to 201,842.44, 278,564.46 and 111,207.70 is: 153,478.69
Step by Step Solution
- Step 1: Write the proportion equation
201,842.44 : 278,564.46 = 111,207.70 : x - Step 2: Convert to fraction form
201,842.44/278,564.46 = 111,207.70/x - Step 3: Cross multiply
201,842.44x = 278,564.46 × 111,207.70 - Step 4: Simplify right side
201,842.44x = 30,978,512,898.34 - Step 5: Solve for x
x = 30,978,512,898.34/201,842.44 - Step 6: Final answer
x = 153,478.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.