Finding the Fourth Proportional to 397,662.16, 548,765.64 and 216,377.68
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Solution
The fourth proportional to 397,662.16, 548,765.64 and 216,377.68 is: 298,596.77
Step by Step Solution
- Step 1: Write the proportion equation
397,662.16 : 548,765.64 = 216,377.68 : x - Step 2: Convert to fraction form
397,662.16/548,765.64 = 216,377.68/x - Step 3: Cross multiply
397,662.16x = 548,765.64 × 216,377.68 - Step 4: Simplify right side
397,662.16x = 118,740,636,046.92 - Step 5: Solve for x
x = 118,740,636,046.92/397,662.16 - Step 6: Final answer
x = 298,596.77
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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.