Finding the Fourth Proportional to 313,661.97, 470,511.18 and 113,981.58
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Solution
The fourth proportional to 313,661.97, 470,511.18 and 113,981.58 is: 170,978.99
Step by Step Solution
- Step 1: Write the proportion equation
313,661.97 : 470,511.18 = 113,981.58 : x - Step 2: Convert to fraction form
313,661.97/470,511.18 = 113,981.58/x - Step 3: Cross multiply
313,661.97x = 470,511.18 × 113,981.58 - Step 4: Simplify right side
313,661.97x = 53,629,607,704.06 - Step 5: Solve for x
x = 53,629,607,704.06/313,661.97 - Step 6: Final answer
x = 170,978.99
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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.