Finding the Fourth Proportional to 397,116.74, 548,100.80 and 235,940.75
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Solution
The fourth proportional to 397,116.74, 548,100.80 and 235,940.75 is: 325,645.60
Step by Step Solution
- Step 1: Write the proportion equation
397,116.74 : 548,100.80 = 235,940.75 : x - Step 2: Convert to fraction form
397,116.74/548,100.80 = 235,940.75/x - Step 3: Cross multiply
397,116.74x = 548,100.80 × 235,940.75 - Step 4: Simplify right side
397,116.74x = 129,319,315,787.70 - Step 5: Solve for x
x = 129,319,315,787.70/397,116.74 - Step 6: Final answer
x = 325,645.60
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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.