Finding the Fourth Proportional to 207,963.70, 311,945.55 and 199,215.70
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Solution
The fourth proportional to 207,963.70, 311,945.55 and 199,215.70 is: 298,823.55
Step by Step Solution
- Step 1: Write the proportion equation
207,963.70 : 311,945.55 = 199,215.70 : x - Step 2: Convert to fraction form
207,963.70/311,945.55 = 199,215.70/x - Step 3: Cross multiply
207,963.70x = 311,945.55 × 199,215.70 - Step 4: Simplify right side
207,963.70x = 62,144,451,105.14 - Step 5: Solve for x
x = 62,144,451,105.14/207,963.70 - Step 6: Final answer
x = 298,823.55
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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.