Finding the Fourth Proportional to 206,837.21, 285,419.97 and 116,208.26
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Solution
The fourth proportional to 206,837.21, 285,419.97 and 116,208.26 is: 160,358.75
Step by Step Solution
- Step 1: Write the proportion equation
206,837.21 : 285,419.97 = 116,208.26 : x - Step 2: Convert to fraction form
206,837.21/285,419.97 = 116,208.26/x - Step 3: Cross multiply
206,837.21x = 285,419.97 × 116,208.26 - Step 4: Simplify right side
206,837.21x = 33,168,156,655.85 - Step 5: Solve for x
x = 33,168,156,655.85/206,837.21 - Step 6: Final answer
x = 160,358.75
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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.