Finding the Fourth Proportional to 331,755.36, 457,844.40 and 188,515.68
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Solution
The fourth proportional to 331,755.36, 457,844.40 and 188,515.68 is: 260,164.14
Step by Step Solution
- Step 1: Write the proportion equation
331,755.36 : 457,844.40 = 188,515.68 : x - Step 2: Convert to fraction form
331,755.36/457,844.40 = 188,515.68/x - Step 3: Cross multiply
331,755.36x = 457,844.40 × 188,515.68 - Step 4: Simplify right side
331,755.36x = 86,310,848,400.19 - Step 5: Solve for x
x = 86,310,848,400.19/331,755.36 - Step 6: Final answer
x = 260,164.14
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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.