Finding the Fourth Proportional to 210,542.98, 290,550.09 and 115,049.69
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Solution
The fourth proportional to 210,542.98, 290,550.09 and 115,049.69 is: 158,768.99
Step by Step Solution
- Step 1: Write the proportion equation
210,542.98 : 290,550.09 = 115,049.69 : x - Step 2: Convert to fraction form
210,542.98/290,550.09 = 115,049.69/x - Step 3: Cross multiply
210,542.98x = 290,550.09 × 115,049.69 - Step 4: Simplify right side
210,542.98x = 33,427,697,208.72 - Step 5: Solve for x
x = 33,427,697,208.72/210,542.98 - Step 6: Final answer
x = 158,768.99
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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.