Finding the Fourth Proportional to 215,660.97, 297,614.95 and 123,795.09
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Solution
The fourth proportional to 215,660.97, 297,614.95 and 123,795.09 is: 170,838.84
Step by Step Solution
- Step 1: Write the proportion equation
215,660.97 : 297,614.95 = 123,795.09 : x - Step 2: Convert to fraction form
215,660.97/297,614.95 = 123,795.09/x - Step 3: Cross multiply
215,660.97x = 297,614.95 × 123,795.09 - Step 4: Simplify right side
215,660.97x = 36,843,268,901.62 - Step 5: Solve for x
x = 36,843,268,901.62/215,660.97 - Step 6: Final answer
x = 170,838.84
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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.