Finding the Fourth Proportional to 210,264.86, 290,163.57 and 129,660.14
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Solution
The fourth proportional to 210,264.86, 290,163.57 and 129,660.14 is: 178,929.80
Step by Step Solution
- Step 1: Write the proportion equation
210,264.86 : 290,163.57 = 129,660.14 : x - Step 2: Convert to fraction form
210,264.86/290,163.57 = 129,660.14/x - Step 3: Cross multiply
210,264.86x = 290,163.57 × 129,660.14 - Step 4: Simplify right side
210,264.86x = 37,622,649,348.28 - Step 5: Solve for x
x = 37,622,649,348.28/210,264.86 - Step 6: Final answer
x = 178,929.80
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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.