Finding the Fourth Proportional to 284,611.03, 392,771.36 and 155,556.70
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Solution
The fourth proportional to 284,611.03, 392,771.36 and 155,556.70 is: 214,672.69
Step by Step Solution
- Step 1: Write the proportion equation
284,611.03 : 392,771.36 = 155,556.70 : x - Step 2: Convert to fraction form
284,611.03/392,771.36 = 155,556.70/x - Step 3: Cross multiply
284,611.03x = 392,771.36 × 155,556.70 - Step 4: Simplify right side
284,611.03x = 61,098,216,023.08 - Step 5: Solve for x
x = 61,098,216,023.08/284,611.03 - Step 6: Final answer
x = 214,672.69
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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.