Finding the Fourth Proportional to 512,467.18, 768,621.92 and 170,916.62
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Solution
The fourth proportional to 512,467.18, 768,621.92 and 170,916.62 is: 256,348.62
Step by Step Solution
- Step 1: Write the proportion equation
512,467.18 : 768,621.92 = 170,916.62 : x - Step 2: Convert to fraction form
512,467.18/768,621.92 = 170,916.62/x - Step 3: Cross multiply
512,467.18x = 768,621.92 × 170,916.62 - Step 4: Simplify right side
512,467.18x = 131,370,255,926.62 - Step 5: Solve for x
x = 131,370,255,926.62/512,467.18 - Step 6: Final answer
x = 256,348.62
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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.