Finding the Fourth Proportional to 284,615.60, 392,770.74 and 155,556.68
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Solution
The fourth proportional to 284,615.60, 392,770.74 and 155,556.68 is: 214,668.88
Step by Step Solution
- Step 1: Write the proportion equation
284,615.60 : 392,770.74 = 155,556.68 : x - Step 2: Convert to fraction form
284,615.60/392,770.74 = 155,556.68/x - Step 3: Cross multiply
284,615.60x = 392,770.74 × 155,556.68 - Step 4: Simplify right side
284,615.60x = 61,098,112,315.54 - Step 5: Solve for x
x = 61,098,112,315.54/284,615.60 - Step 6: Final answer
x = 214,668.88
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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.