Finding the Fourth Proportional to 190,894.38, 263,392.47 and 115,441.26
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Solution
The fourth proportional to 190,894.38, 263,392.47 and 115,441.26 is: 159,283.68
Step by Step Solution
- Step 1: Write the proportion equation
190,894.38 : 263,392.47 = 115,441.26 : x - Step 2: Convert to fraction form
190,894.38/263,392.47 = 115,441.26/x - Step 3: Cross multiply
190,894.38x = 263,392.47 × 115,441.26 - Step 4: Simplify right side
190,894.38x = 30,406,358,611.31 - Step 5: Solve for x
x = 30,406,358,611.31/190,894.38 - Step 6: Final answer
x = 159,283.68
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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.