Finding the Fourth Proportional to 313,721.51, 432,716.78 and 206,257.19
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Solution
The fourth proportional to 313,721.51, 432,716.78 and 206,257.19 is: 284,491.00
Step by Step Solution
- Step 1: Write the proportion equation
313,721.51 : 432,716.78 = 206,257.19 : x - Step 2: Convert to fraction form
313,721.51/432,716.78 = 206,257.19/x - Step 3: Cross multiply
313,721.51x = 432,716.78 × 206,257.19 - Step 4: Simplify right side
313,721.51x = 89,250,945,460.71 - Step 5: Solve for x
x = 89,250,945,460.71/313,721.51 - Step 6: Final answer
x = 284,491.00
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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.