Finding the Fourth Proportional to 397,615.60, 548,714.92 and 216,329.70
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Solution
The fourth proportional to 397,615.60, 548,714.92 and 216,329.70 is: 298,537.92
Step by Step Solution
- Step 1: Write the proportion equation
397,615.60 : 548,714.92 = 216,329.70 : x - Step 2: Convert to fraction form
397,615.60/548,714.92 = 216,329.70/x - Step 3: Cross multiply
397,615.60x = 548,714.92 × 216,329.70 - Step 4: Simplify right side
397,615.60x = 118,703,334,029.12 - Step 5: Solve for x
x = 118,703,334,029.12/397,615.60 - Step 6: Final answer
x = 298,537.92
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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.