Finding the Fourth Proportional to 209,207.75, 313,813.83 and 82,878.75
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Solution
The fourth proportional to 209,207.75, 313,813.83 and 82,878.75 is: 124,319.00
Step by Step Solution
- Step 1: Write the proportion equation
209,207.75 : 313,813.83 = 82,878.75 : x - Step 2: Convert to fraction form
209,207.75/313,813.83 = 82,878.75/x - Step 3: Cross multiply
209,207.75x = 313,813.83 × 82,878.75 - Step 4: Simplify right side
209,207.75x = 26,008,497,963.11 - Step 5: Solve for x
x = 26,008,497,963.11/209,207.75 - Step 6: Final answer
x = 124,319.00
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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.