Finding the Fourth Proportional to 408,364.93, 612,612.74 and 142,201.09
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Solution
The fourth proportional to 408,364.93, 612,612.74 and 142,201.09 is: 213,324.39
Step by Step Solution
- Step 1: Write the proportion equation
408,364.93 : 612,612.74 = 142,201.09 : x - Step 2: Convert to fraction form
408,364.93/612,612.74 = 142,201.09/x - Step 3: Cross multiply
408,364.93x = 612,612.74 × 142,201.09 - Step 4: Simplify right side
408,364.93x = 87,114,199,375.89 - Step 5: Solve for x
x = 87,114,199,375.89/408,364.93 - Step 6: Final answer
x = 213,324.39
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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.