Finding the Fourth Proportional to 381,252.96, 571,480.39 and 128,446.09
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Solution
The fourth proportional to 381,252.96, 571,480.39 and 128,446.09 is: 192,534.69
Step by Step Solution
- Step 1: Write the proportion equation
381,252.96 : 571,480.39 = 128,446.09 : x - Step 2: Convert to fraction form
381,252.96/571,480.39 = 128,446.09/x - Step 3: Cross multiply
381,252.96x = 571,480.39 × 128,446.09 - Step 4: Simplify right side
381,252.96x = 73,404,421,607.18 - Step 5: Solve for x
x = 73,404,421,607.18/381,252.96 - Step 6: Final answer
x = 192,534.69
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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.