Finding the Fourth Proportional to 207,170.68, 285,917.49 and 126,645.34
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Solution
The fourth proportional to 207,170.68, 285,917.49 and 126,645.34 is: 174,783.99
Step by Step Solution
- Step 1: Write the proportion equation
207,170.68 : 285,917.49 = 126,645.34 : x - Step 2: Convert to fraction form
207,170.68/285,917.49 = 126,645.34/x - Step 3: Cross multiply
207,170.68x = 285,917.49 × 126,645.34 - Step 4: Simplify right side
207,170.68x = 36,210,117,733.00 - Step 5: Solve for x
x = 36,210,117,733.00/207,170.68 - Step 6: Final answer
x = 174,783.99
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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.