Finding the Fourth Proportional to 262,636.98, 394,078.50 and 129,444.63
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Solution
The fourth proportional to 262,636.98, 394,078.50 and 129,444.63 is: 194,227.58
Step by Step Solution
- Step 1: Write the proportion equation
262,636.98 : 394,078.50 = 129,444.63 : x - Step 2: Convert to fraction form
262,636.98/394,078.50 = 129,444.63/x - Step 3: Cross multiply
262,636.98x = 394,078.50 × 129,444.63 - Step 4: Simplify right side
262,636.98x = 51,011,345,623.46 - Step 5: Solve for x
x = 51,011,345,623.46/262,636.98 - Step 6: Final answer
x = 194,227.58
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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.