Finding the Fourth Proportional to 421,385.69, 631,732.26 and 196,634.99
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Solution
The fourth proportional to 421,385.69, 631,732.26 and 196,634.99 is: 294,790.90
Step by Step Solution
- Step 1: Write the proportion equation
421,385.69 : 631,732.26 = 196,634.99 : x - Step 2: Convert to fraction form
421,385.69/631,732.26 = 196,634.99/x - Step 3: Cross multiply
421,385.69x = 631,732.26 × 196,634.99 - Step 4: Simplify right side
421,385.69x = 124,220,668,944.49 - Step 5: Solve for x
x = 124,220,668,944.49/421,385.69 - Step 6: Final answer
x = 294,790.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.