Finding the Fourth Proportional to 395,626.35, 545,963.60 and 214,342.80
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Solution
The fourth proportional to 395,626.35, 545,963.60 and 214,342.80 is: 295,792.65
Step by Step Solution
- Step 1: Write the proportion equation
395,626.35 : 545,963.60 = 214,342.80 : x - Step 2: Convert to fraction form
395,626.35/545,963.60 = 214,342.80/x - Step 3: Cross multiply
395,626.35x = 545,963.60 × 214,342.80 - Step 4: Simplify right side
395,626.35x = 117,023,365,650.37 - Step 5: Solve for x
x = 117,023,365,650.37/395,626.35 - Step 6: Final answer
x = 295,792.65
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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.