Finding the Fourth Proportional to 248,639.12, 343,128.66 and 135,469.16
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Solution
The fourth proportional to 248,639.12, 343,128.66 and 135,469.16 is: 186,951.08
Step by Step Solution
- Step 1: Write the proportion equation
248,639.12 : 343,128.66 = 135,469.16 : x - Step 2: Convert to fraction form
248,639.12/343,128.66 = 135,469.16/x - Step 3: Cross multiply
248,639.12x = 343,128.66 × 135,469.16 - Step 4: Simplify right side
248,639.12x = 46,483,351,342.13 - Step 5: Solve for x
x = 46,483,351,342.13/248,639.12 - Step 6: Final answer
x = 186,951.08
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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.