Finding the Fourth Proportional to 207,553.70, 311,428.97 and 123,479.96
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Solution
The fourth proportional to 207,553.70, 311,428.97 and 123,479.96 is: 185,278.49
Step by Step Solution
- Step 1: Write the proportion equation
207,553.70 : 311,428.97 = 123,479.96 : x - Step 2: Convert to fraction form
207,553.70/311,428.97 = 123,479.96/x - Step 3: Cross multiply
207,553.70x = 311,428.97 × 123,479.96 - Step 4: Simplify right side
207,553.70x = 38,455,234,583.90 - Step 5: Solve for x
x = 38,455,234,583.90/207,553.70 - Step 6: Final answer
x = 185,278.49
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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.