Finding the Fourth Proportional to 397,634.57, 548,731.45 and 236,486.08
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Solution
The fourth proportional to 397,634.57, 548,731.45 and 236,486.08 is: 326,348.25
Step by Step Solution
- Step 1: Write the proportion equation
397,634.57 : 548,731.45 = 236,486.08 : x - Step 2: Convert to fraction form
397,634.57/548,731.45 = 236,486.08/x - Step 3: Cross multiply
397,634.57x = 548,731.45 × 236,486.08 - Step 4: Simplify right side
397,634.57x = 129,767,345,657.13 - Step 5: Solve for x
x = 129,767,345,657.13/397,634.57 - Step 6: Final answer
x = 326,348.25
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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.