Finding the Fourth Proportional to 206,927.97, 310,785.63 and 128,589.63
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Solution
The fourth proportional to 206,927.97, 310,785.63 and 128,589.63 is: 193,129.08
Step by Step Solution
- Step 1: Write the proportion equation
206,927.97 : 310,785.63 = 128,589.63 : x - Step 2: Convert to fraction form
206,927.97/310,785.63 = 128,589.63/x - Step 3: Cross multiply
206,927.97x = 310,785.63 × 128,589.63 - Step 4: Simplify right side
206,927.97x = 39,963,809,171.02 - Step 5: Solve for x
x = 39,963,809,171.02/206,927.97 - Step 6: Final answer
x = 193,129.08
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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.