Finding the Fourth Proportional to 512,440.40, 768,660.60 and 228,130.40
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Solution
The fourth proportional to 512,440.40, 768,660.60 and 228,130.40 is: 342,195.60
Step by Step Solution
- Step 1: Write the proportion equation
512,440.40 : 768,660.60 = 228,130.40 : x - Step 2: Convert to fraction form
512,440.40/768,660.60 = 228,130.40/x - Step 3: Cross multiply
512,440.40x = 768,660.60 × 228,130.40 - Step 4: Simplify right side
512,440.40x = 175,354,850,142.24 - Step 5: Solve for x
x = 175,354,850,142.24/512,440.40 - Step 6: Final answer
x = 342,195.60
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1.5x scale
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.