Finding the Fourth Proportional to 305,438.24, 421,518.97 and 190,784.77
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Solution
The fourth proportional to 305,438.24, 421,518.97 and 190,784.77 is: 263,291.85
Step by Step Solution
- Step 1: Write the proportion equation
305,438.24 : 421,518.97 = 190,784.77 : x - Step 2: Convert to fraction form
305,438.24/421,518.97 = 190,784.77/x - Step 3: Cross multiply
305,438.24x = 421,518.97 × 190,784.77 - Step 4: Simplify right side
305,438.24x = 80,419,399,165.25 - Step 5: Solve for x
x = 80,419,399,165.25/305,438.24 - Step 6: Final answer
x = 263,291.85
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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.