Finding the Fourth Proportional to 455,091.21, 628,040.95 and 248,370.92
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Solution
The fourth proportional to 455,091.21, 628,040.95 and 248,370.92 is: 342,760.09
Step by Step Solution
- Step 1: Write the proportion equation
455,091.21 : 628,040.95 = 248,370.92 : x - Step 2: Convert to fraction form
455,091.21/628,040.95 = 248,370.92/x - Step 3: Cross multiply
455,091.21x = 628,040.95 × 248,370.92 - Step 4: Simplify right side
455,091.21x = 155,987,104,167.12 - Step 5: Solve for x
x = 155,987,104,167.12/455,091.21 - Step 6: Final answer
x = 342,760.09
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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.