Finding the Fourth Proportional to 230,361.36, 317,924.49 and 128,396.13
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Solution
The fourth proportional to 230,361.36, 317,924.49 and 128,396.13 is: 177,201.05
Step by Step Solution
- Step 1: Write the proportion equation
230,361.36 : 317,924.49 = 128,396.13 : x - Step 2: Convert to fraction form
230,361.36/317,924.49 = 128,396.13/x - Step 3: Cross multiply
230,361.36x = 317,924.49 × 128,396.13 - Step 4: Simplify right side
230,361.36x = 40,820,274,148.22 - Step 5: Solve for x
x = 40,820,274,148.22/230,361.36 - Step 6: Final answer
x = 177,201.05
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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.