Finding the Fourth Proportional to 313,715.24, 470,660.70 and 126,857.96
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Solution
The fourth proportional to 313,715.24, 470,660.70 and 126,857.96 is: 190,322.46
Step by Step Solution
- Step 1: Write the proportion equation
313,715.24 : 470,660.70 = 126,857.96 : x - Step 2: Convert to fraction form
313,715.24/470,660.70 = 126,857.96/x - Step 3: Cross multiply
313,715.24x = 470,660.70 × 126,857.96 - Step 4: Simplify right side
313,715.24x = 59,707,056,254.17 - Step 5: Solve for x
x = 59,707,056,254.17/313,715.24 - Step 6: Final answer
x = 190,322.46
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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.