Finding the Fourth Proportional to 397,147.23, 548,068.68 and 215,859.06
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Solution
The fourth proportional to 397,147.23, 548,068.68 and 215,859.06 is: 297,888.49
Step by Step Solution
- Step 1: Write the proportion equation
397,147.23 : 548,068.68 = 215,859.06 : x - Step 2: Convert to fraction form
397,147.23/548,068.68 = 215,859.06/x - Step 3: Cross multiply
397,147.23x = 548,068.68 × 215,859.06 - Step 4: Simplify right side
397,147.23x = 118,305,590,080.24 - Step 5: Solve for x
x = 118,305,590,080.24/397,147.23 - Step 6: Final answer
x = 297,888.49
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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.