Finding the Fourth Proportional to 262,158.63, 392,392.17 and 135,624.63
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Solution
The fourth proportional to 262,158.63, 392,392.17 and 135,624.63 is: 202,999.39
Step by Step Solution
- Step 1: Write the proportion equation
262,158.63 : 392,392.17 = 135,624.63 : x - Step 2: Convert to fraction form
262,158.63/392,392.17 = 135,624.63/x - Step 3: Cross multiply
262,158.63x = 392,392.17 × 135,624.63 - Step 4: Simplify right side
262,158.63x = 53,218,042,871.15 - Step 5: Solve for x
x = 53,218,042,871.15/262,158.63 - Step 6: Final answer
x = 202,999.39
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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.