Finding the Fourth Proportional to 212,781.19, 293,629.21 and 115,982.91
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Solution
The fourth proportional to 212,781.19, 293,629.21 and 115,982.91 is: 160,051.60
Step by Step Solution
- Step 1: Write the proportion equation
212,781.19 : 293,629.21 = 115,982.91 : x - Step 2: Convert to fraction form
212,781.19/293,629.21 = 115,982.91/x - Step 3: Cross multiply
212,781.19x = 293,629.21 × 115,982.91 - Step 4: Simplify right side
212,781.19x = 34,055,970,236.80 - Step 5: Solve for x
x = 34,055,970,236.80/212,781.19 - Step 6: Final answer
x = 160,051.60
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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.