Finding the Fourth Proportional to 371,992.38, 513,396.97 and 219,044.80
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Solution
The fourth proportional to 371,992.38, 513,396.97 and 219,044.80 is: 302,309.79
Step by Step Solution
- Step 1: Write the proportion equation
371,992.38 : 513,396.97 = 219,044.80 : x - Step 2: Convert to fraction form
371,992.38/513,396.97 = 219,044.80/x - Step 3: Cross multiply
371,992.38x = 513,396.97 × 219,044.80 - Step 4: Simplify right side
371,992.38x = 112,456,936,614.26 - Step 5: Solve for x
x = 112,456,936,614.26/371,992.38 - Step 6: Final answer
x = 302,309.79
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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.