Finding the Fourth Proportional to 211,960.13, 292,503.15 and 115,162.97
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Solution
The fourth proportional to 211,960.13, 292,503.15 and 115,162.97 is: 158,923.90
Step by Step Solution
- Step 1: Write the proportion equation
211,960.13 : 292,503.15 = 115,162.97 : x - Step 2: Convert to fraction form
211,960.13/292,503.15 = 115,162.97/x - Step 3: Cross multiply
211,960.13x = 292,503.15 × 115,162.97 - Step 4: Simplify right side
211,960.13x = 33,685,530,025.84 - Step 5: Solve for x
x = 33,685,530,025.84/211,960.13 - Step 6: Final answer
x = 158,923.90
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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.