Finding the Fourth Proportional to 389,511.08, 584,208.05 and 123,236.94
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Solution
The fourth proportional to 389,511.08, 584,208.05 and 123,236.94 is: 184,836.88
Step by Step Solution
- Step 1: Write the proportion equation
389,511.08 : 584,208.05 = 123,236.94 : x - Step 2: Convert to fraction form
389,511.08/584,208.05 = 123,236.94/x - Step 3: Cross multiply
389,511.08x = 584,208.05 × 123,236.94 - Step 4: Simplify right side
389,511.08x = 71,996,013,979.96 - Step 5: Solve for x
x = 71,996,013,979.96/389,511.08 - Step 6: Final answer
x = 184,836.88
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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.