Finding the Fourth Proportional to 290,785.09, 401,207.58 and 169,857.66
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Solution
The fourth proportional to 290,785.09, 401,207.58 and 169,857.66 is: 234,359.27
Step by Step Solution
- Step 1: Write the proportion equation
290,785.09 : 401,207.58 = 169,857.66 : x - Step 2: Convert to fraction form
290,785.09/401,207.58 = 169,857.66/x - Step 3: Cross multiply
290,785.09x = 401,207.58 × 169,857.66 - Step 4: Simplify right side
290,785.09x = 68,148,179,960.80 - Step 5: Solve for x
x = 68,148,179,960.80/290,785.09 - Step 6: Final answer
x = 234,359.27
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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.