Finding the Fourth Proportional to 173,819.80, 260,729.70 and 138,827.80
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Solution
The fourth proportional to 173,819.80, 260,729.70 and 138,827.80 is: 208,241.70
Step by Step Solution
- Step 1: Write the proportion equation
173,819.80 : 260,729.70 = 138,827.80 : x - Step 2: Convert to fraction form
173,819.80/260,729.70 = 138,827.80/x - Step 3: Cross multiply
173,819.80x = 260,729.70 × 138,827.80 - Step 4: Simplify right side
173,819.80x = 36,196,530,645.66 - Step 5: Solve for x
x = 36,196,530,645.66/173,819.80 - Step 6: Final answer
x = 208,241.70
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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.