Finding the Fourth Proportional to 281,433.41, 422,305.92 and 104,056.79
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Solution
The fourth proportional to 281,433.41, 422,305.92 and 104,056.79 is: 156,142.79
Step by Step Solution
- Step 1: Write the proportion equation
281,433.41 : 422,305.92 = 104,056.79 : x - Step 2: Convert to fraction form
281,433.41/422,305.92 = 104,056.79/x - Step 3: Cross multiply
281,433.41x = 422,305.92 × 104,056.79 - Step 4: Simplify right side
281,433.41x = 43,943,798,433.20 - Step 5: Solve for x
x = 43,943,798,433.20/281,433.41 - Step 6: Final answer
x = 156,142.79
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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.