Finding the Fourth Proportional to 171,242.26, 256,858.09 and 81,349.68
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Solution
The fourth proportional to 171,242.26, 256,858.09 and 81,349.68 is: 122,022.00
Step by Step Solution
- Step 1: Write the proportion equation
171,242.26 : 256,858.09 = 81,349.68 : x - Step 2: Convert to fraction form
171,242.26/256,858.09 = 81,349.68/x - Step 3: Cross multiply
171,242.26x = 256,858.09 × 81,349.68 - Step 4: Simplify right side
171,242.26x = 20,895,323,223.54 - Step 5: Solve for x
x = 20,895,323,223.54/171,242.26 - Step 6: Final answer
x = 122,022.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.