Finding the Fourth Proportional to 210,676.99, 290,734.25 and 115,183.69
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Solution
The fourth proportional to 210,676.99, 290,734.25 and 115,183.69 is: 158,953.49
Step by Step Solution
- Step 1: Write the proportion equation
210,676.99 : 290,734.25 = 115,183.69 : x - Step 2: Convert to fraction form
210,676.99/290,734.25 = 115,183.69/x - Step 3: Cross multiply
210,676.99x = 290,734.25 × 115,183.69 - Step 4: Simplify right side
210,676.99x = 33,487,843,724.38 - Step 5: Solve for x
x = 33,487,843,724.38/210,676.99 - Step 6: Final answer
x = 158,953.49
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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.