Finding the Fourth Proportional to 312,067.36, 430,454.28 and 204,644.08
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Solution
The fourth proportional to 312,067.36, 430,454.28 and 204,644.08 is: 282,278.54
Step by Step Solution
- Step 1: Write the proportion equation
312,067.36 : 430,454.28 = 204,644.08 : x - Step 2: Convert to fraction form
312,067.36/430,454.28 = 204,644.08/x - Step 3: Cross multiply
312,067.36x = 430,454.28 × 204,644.08 - Step 4: Simplify right side
312,067.36x = 88,089,920,112.66 - Step 5: Solve for x
x = 88,089,920,112.66/312,067.36 - Step 6: Final answer
x = 282,278.54
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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.