Finding the Fourth Proportional to 215,754.31, 297,739.09 and 117,637.62
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Solution
The fourth proportional to 215,754.31, 297,739.09 and 117,637.62 is: 162,338.90
Step by Step Solution
- Step 1: Write the proportion equation
215,754.31 : 297,739.09 = 117,637.62 : x - Step 2: Convert to fraction form
215,754.31/297,739.09 = 117,637.62/x - Step 3: Cross multiply
215,754.31x = 297,739.09 × 117,637.62 - Step 4: Simplify right side
215,754.31x = 35,025,317,928.57 - Step 5: Solve for x
x = 35,025,317,928.57/215,754.31 - Step 6: Final answer
x = 162,338.90
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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.