Finding the Fourth Proportional to 186,640.97, 257,553.43 and 106,057.31
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Solution
The fourth proportional to 186,640.97, 257,553.43 and 106,057.31 is: 146,352.77
Step by Step Solution
- Step 1: Write the proportion equation
186,640.97 : 257,553.43 = 106,057.31 : x - Step 2: Convert to fraction form
186,640.97/257,553.43 = 106,057.31/x - Step 3: Cross multiply
186,640.97x = 257,553.43 × 106,057.31 - Step 4: Simplify right side
186,640.97x = 27,315,422,149.02 - Step 5: Solve for x
x = 27,315,422,149.02/186,640.97 - Step 6: Final answer
x = 146,352.77
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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.