Finding the Fourth Proportional to 209,145.24, 313,579.17 and 76,009.68
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Solution
The fourth proportional to 209,145.24, 313,579.17 and 76,009.68 is: 113,964.12
Step by Step Solution
- Step 1: Write the proportion equation
209,145.24 : 313,579.17 = 76,009.68 : x - Step 2: Convert to fraction form
209,145.24/313,579.17 = 76,009.68/x - Step 3: Cross multiply
209,145.24x = 313,579.17 × 76,009.68 - Step 4: Simplify right side
209,145.24x = 23,835,052,366.37 - Step 5: Solve for x
x = 23,835,052,366.37/209,145.24 - Step 6: Final answer
x = 113,964.12
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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.