Finding the Fourth Proportional to 397,448.40, 548,619.60 and 236,302.68
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Solution
The fourth proportional to 397,448.40, 548,619.60 and 236,302.68 is: 326,181.42
Step by Step Solution
- Step 1: Write the proportion equation
397,448.40 : 548,619.60 = 236,302.68 : x - Step 2: Convert to fraction form
397,448.40/548,619.60 = 236,302.68/x - Step 3: Cross multiply
397,448.40x = 548,619.60 × 236,302.68 - Step 4: Simplify right side
397,448.40x = 129,640,281,780.53 - Step 5: Solve for x
x = 129,640,281,780.53/397,448.40 - Step 6: Final answer
x = 326,181.42
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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.