Finding the Fourth Proportional to 313,690.48, 432,891.92 and 170,450.96
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Solution
The fourth proportional to 313,690.48, 432,891.92 and 170,450.96 is: 235,221.81
Step by Step Solution
- Step 1: Write the proportion equation
313,690.48 : 432,891.92 = 170,450.96 : x - Step 2: Convert to fraction form
313,690.48/432,891.92 = 170,450.96/x - Step 3: Cross multiply
313,690.48x = 432,891.92 × 170,450.96 - Step 4: Simplify right side
313,690.48x = 73,786,843,340.24 - Step 5: Solve for x
x = 73,786,843,340.24/313,690.48 - Step 6: Final answer
x = 235,221.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.