Finding the Fourth Proportional to 270,134.97, 372,815.15 and 155,418.63
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Solution
The fourth proportional to 270,134.97, 372,815.15 and 155,418.63 is: 214,494.33
Step by Step Solution
- Step 1: Write the proportion equation
270,134.97 : 372,815.15 = 155,418.63 : x - Step 2: Convert to fraction form
270,134.97/372,815.15 = 155,418.63/x - Step 3: Cross multiply
270,134.97x = 372,815.15 × 155,418.63 - Step 4: Simplify right side
270,134.97x = 57,942,419,856.24 - Step 5: Solve for x
x = 57,942,419,856.24/270,134.97 - Step 6: Final answer
x = 214,494.33
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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.