Finding the Fourth Proportional to 395,422.97, 545,680.96 and 214,130.75
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Solution
The fourth proportional to 395,422.97, 545,680.96 and 214,130.75 is: 295,498.95
Step by Step Solution
- Step 1: Write the proportion equation
395,422.97 : 545,680.96 = 214,130.75 : x - Step 2: Convert to fraction form
395,422.97/545,680.96 = 214,130.75/x - Step 3: Cross multiply
395,422.97x = 545,680.96 × 214,130.75 - Step 4: Simplify right side
395,422.97x = 116,847,069,961.79 - Step 5: Solve for x
x = 116,847,069,961.79/395,422.97 - Step 6: Final answer
x = 295,498.95
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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.