Finding the Fourth Proportional to 512,668.80, 768,772.80 and 197,020.80
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Solution
The fourth proportional to 512,668.80, 768,772.80 and 197,020.80 is: 295,442.66
Step by Step Solution
- Step 1: Write the proportion equation
512,668.80 : 768,772.80 = 197,020.80 : x - Step 2: Convert to fraction form
512,668.80/768,772.80 = 197,020.80/x - Step 3: Cross multiply
512,668.80x = 768,772.80 × 197,020.80 - Step 4: Simplify right side
512,668.80x = 151,464,232,074.24 - Step 5: Solve for x
x = 151,464,232,074.24/512,668.80 - Step 6: Final answer
x = 295,442.66
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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.