Finding the Fourth Proportional to 206,857.77, 310,128.80 and 106,954.19
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Solution
The fourth proportional to 206,857.77, 310,128.80 and 106,954.19 is: 160,349.66
Step by Step Solution
- Step 1: Write the proportion equation
206,857.77 : 310,128.80 = 106,954.19 : x - Step 2: Convert to fraction form
206,857.77/310,128.80 = 106,954.19/x - Step 3: Cross multiply
206,857.77x = 310,128.80 × 106,954.19 - Step 4: Simplify right side
206,857.77x = 33,169,572,514.26 - Step 5: Solve for x
x = 33,169,572,514.26/206,857.77 - Step 6: Final answer
x = 160,349.66
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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.