Finding the Fourth Proportional to 378,992.36, 523,006.08 and 209,222.84
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Solution
The fourth proportional to 378,992.36, 523,006.08 and 209,222.84 is: 288,725.66
Step by Step Solution
- Step 1: Write the proportion equation
378,992.36 : 523,006.08 = 209,222.84 : x - Step 2: Convert to fraction form
378,992.36/523,006.08 = 209,222.84/x - Step 3: Cross multiply
378,992.36x = 523,006.08 × 209,222.84 - Step 4: Simplify right side
378,992.36x = 109,424,817,394.87 - Step 5: Solve for x
x = 109,424,817,394.87/378,992.36 - Step 6: Final answer
x = 288,725.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.