Finding the Fourth Proportional to 396,949.67, 547,787.60 and 215,663.09
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Solution
The fourth proportional to 396,949.67, 547,787.60 and 215,663.09 is: 297,613.46
Step by Step Solution
- Step 1: Write the proportion equation
396,949.67 : 547,787.60 = 215,663.09 : x - Step 2: Convert to fraction form
396,949.67/547,787.60 = 215,663.09/x - Step 3: Cross multiply
396,949.67x = 547,787.60 × 215,663.09 - Step 4: Simplify right side
396,949.67x = 118,137,565,401.37 - Step 5: Solve for x
x = 118,137,565,401.37/396,949.67 - Step 6: Final answer
x = 297,613.46
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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.