Finding the Fourth Proportional to 313,481.91, 432,737.41 and 211,645.26
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Solution
The fourth proportional to 313,481.91, 432,737.41 and 211,645.26 is: 292,159.83
Step by Step Solution
- Step 1: Write the proportion equation
313,481.91 : 432,737.41 = 211,645.26 : x - Step 2: Convert to fraction form
313,481.91/432,737.41 = 211,645.26/x - Step 3: Cross multiply
313,481.91x = 432,737.41 × 211,645.26 - Step 4: Simplify right side
313,481.91x = 91,586,821,651.18 - Step 5: Solve for x
x = 91,586,821,651.18/313,481.91 - Step 6: Final answer
x = 292,159.83
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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.