Finding the Fourth Proportional to 211,157.70, 291,397.14 and 114,361.26
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Solution
The fourth proportional to 211,157.70, 291,397.14 and 114,361.26 is: 157,818.28
Step by Step Solution
- Step 1: Write the proportion equation
211,157.70 : 291,397.14 = 114,361.26 : x - Step 2: Convert to fraction form
211,157.70/291,397.14 = 114,361.26/x - Step 3: Cross multiply
211,157.70x = 291,397.14 × 114,361.26 - Step 4: Simplify right side
211,157.70x = 33,324,544,090.80 - Step 5: Solve for x
x = 33,324,544,090.80/211,157.70 - Step 6: Final answer
x = 157,818.28
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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.