Finding the Fourth Proportional to 330,523.20, 495,201.60 and 271,036.80
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Solution
The fourth proportional to 330,523.20, 495,201.60 and 271,036.80 is: 406,076.96
Step by Step Solution
- Step 1: Write the proportion equation
330,523.20 : 495,201.60 = 271,036.80 : x - Step 2: Convert to fraction form
330,523.20/495,201.60 = 271,036.80/x - Step 3: Cross multiply
330,523.20x = 495,201.60 × 271,036.80 - Step 4: Simplify right side
330,523.20x = 134,217,857,018.88 - Step 5: Solve for x
x = 134,217,857,018.88/330,523.20 - Step 6: Final answer
x = 406,076.96
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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.