Finding the Fourth Proportional to 368,930.43, 509,124.99 and 213,911.82
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Solution
The fourth proportional to 368,930.43, 509,124.99 and 213,911.82 is: 295,198.89
Step by Step Solution
- Step 1: Write the proportion equation
368,930.43 : 509,124.99 = 213,911.82 : x - Step 2: Convert to fraction form
368,930.43/509,124.99 = 213,911.82/x - Step 3: Cross multiply
368,930.43x = 509,124.99 × 213,911.82 - Step 4: Simplify right side
368,930.43x = 108,907,854,020.55 - Step 5: Solve for x
x = 108,907,854,020.55/368,930.43 - Step 6: Final answer
x = 295,198.89
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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.