Finding the Fourth Proportional to 395,411.36, 545,668.80 and 214,125.44
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Solution
The fourth proportional to 395,411.36, 545,668.80 and 214,125.44 is: 295,493.72
Step by Step Solution
- Step 1: Write the proportion equation
395,411.36 : 545,668.80 = 214,125.44 : x - Step 2: Convert to fraction form
395,411.36/545,668.80 = 214,125.44/x - Step 3: Cross multiply
395,411.36x = 545,668.80 × 214,125.44 - Step 4: Simplify right side
395,411.36x = 116,841,571,894.27 - Step 5: Solve for x
x = 116,841,571,894.27/395,411.36 - Step 6: Final answer
x = 295,493.72
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1.5x scale
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.