Finding the Fourth Proportional to 211,166.46, 316,527.21 and 77,961.42
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Solution
The fourth proportional to 211,166.46, 316,527.21 and 77,961.42 is: 116,859.99
Step by Step Solution
- Step 1: Write the proportion equation
211,166.46 : 316,527.21 = 77,961.42 : x - Step 2: Convert to fraction form
211,166.46/316,527.21 = 77,961.42/x - Step 3: Cross multiply
211,166.46x = 316,527.21 × 77,961.42 - Step 4: Simplify right side
211,166.46x = 24,676,910,760.24 - Step 5: Solve for x
x = 24,676,910,760.24/211,166.46 - Step 6: Final answer
x = 116,859.99
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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.