Finding the Fourth Proportional to 313,694.93, 470,543.97 and 77,037.68
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Solution
The fourth proportional to 313,694.93, 470,543.97 and 77,037.68 is: 115,556.91
Step by Step Solution
- Step 1: Write the proportion equation
313,694.93 : 470,543.97 = 77,037.68 : x - Step 2: Convert to fraction form
313,694.93/470,543.97 = 77,037.68/x - Step 3: Cross multiply
313,694.93x = 470,543.97 × 77,037.68 - Step 4: Simplify right side
313,694.93x = 36,249,617,252.04 - Step 5: Solve for x
x = 36,249,617,252.04/313,694.93 - Step 6: Final answer
x = 115,556.91
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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.