Finding the Fourth Proportional to 305,668.24, 421,835.78 and 169,704.07
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Solution
The fourth proportional to 305,668.24, 421,835.78 and 169,704.07 is: 234,199.17
Step by Step Solution
- Step 1: Write the proportion equation
305,668.24 : 421,835.78 = 169,704.07 : x - Step 2: Convert to fraction form
305,668.24/421,835.78 = 169,704.07/x - Step 3: Cross multiply
305,668.24x = 421,835.78 × 169,704.07 - Step 4: Simplify right side
305,668.24x = 71,587,248,107.30 - Step 5: Solve for x
x = 71,587,248,107.30/305,668.24 - Step 6: Final answer
x = 234,199.17
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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.