Finding the Fourth Proportional to 172,514.70, 258,772.05 and 47,855.70
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Solution
The fourth proportional to 172,514.70, 258,772.05 and 47,855.70 is: 71,783.55
Step by Step Solution
- Step 1: Write the proportion equation
172,514.70 : 258,772.05 = 47,855.70 : x - Step 2: Convert to fraction form
172,514.70/258,772.05 = 47,855.70/x - Step 3: Cross multiply
172,514.70x = 258,772.05 × 47,855.70 - Step 4: Simplify right side
172,514.70x = 12,383,717,593.19 - Step 5: Solve for x
x = 12,383,717,593.19/172,514.70 - Step 6: Final answer
x = 71,783.55
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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.