Finding the Fourth Proportional to 207,821.70, 311,508.99 and 89,548.74
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Solution
The fourth proportional to 207,821.70, 311,508.99 and 89,548.74 is: 134,226.78
Step by Step Solution
- Step 1: Write the proportion equation
207,821.70 : 311,508.99 = 89,548.74 : x - Step 2: Convert to fraction form
207,821.70/311,508.99 = 89,548.74/x - Step 3: Cross multiply
207,821.70x = 311,508.99 × 89,548.74 - Step 4: Simplify right side
207,821.70x = 27,895,237,553.17 - Step 5: Solve for x
x = 27,895,237,553.17/207,821.70 - Step 6: Final answer
x = 134,226.78
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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.