Finding the Fourth Proportional to 251,234.71, 376,910.35 and 82,748.99
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Solution
The fourth proportional to 251,234.71, 376,910.35 and 82,748.99 is: 124,142.68
Step by Step Solution
- Step 1: Write the proportion equation
251,234.71 : 376,910.35 = 82,748.99 : x - Step 2: Convert to fraction form
251,234.71/376,910.35 = 82,748.99/x - Step 3: Cross multiply
251,234.71x = 376,910.35 × 82,748.99 - Step 4: Simplify right side
251,234.71x = 31,188,951,518.45 - Step 5: Solve for x
x = 31,188,951,518.45/251,234.71 - Step 6: Final answer
x = 124,142.68
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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.