Finding the Fourth Proportional to 252,043.20, 378,064.80 and 217,828.80
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Solution
The fourth proportional to 252,043.20, 378,064.80 and 217,828.80 is: 326,743.20
Step by Step Solution
- Step 1: Write the proportion equation
252,043.20 : 378,064.80 = 217,828.80 : x - Step 2: Convert to fraction form
252,043.20/378,064.80 = 217,828.80/x - Step 3: Cross multiply
252,043.20x = 378,064.80 × 217,828.80 - Step 4: Simplify right side
252,043.20x = 82,353,401,706.24 - Step 5: Solve for x
x = 82,353,401,706.24/252,043.20 - Step 6: Final answer
x = 326,743.20
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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.