Finding the Fourth Proportional to 215,959.09, 324,219.91 and 145,198.71
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Solution
The fourth proportional to 215,959.09, 324,219.91 and 145,198.71 is: 217,987.17
Step by Step Solution
- Step 1: Write the proportion equation
215,959.09 : 324,219.91 = 145,198.71 : x - Step 2: Convert to fraction form
215,959.09/324,219.91 = 145,198.71/x - Step 3: Cross multiply
215,959.09x = 324,219.91 × 145,198.71 - Step 4: Simplify right side
215,959.09x = 47,076,310,341.22 - Step 5: Solve for x
x = 47,076,310,341.22/215,959.09 - Step 6: Final answer
x = 217,987.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.