Finding the Fourth Proportional to 281,606.22, 422,437.05 and 81,928.62
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Solution
The fourth proportional to 281,606.22, 422,437.05 and 81,928.62 is: 122,900.99
Step by Step Solution
- Step 1: Write the proportion equation
281,606.22 : 422,437.05 = 81,928.62 : x - Step 2: Convert to fraction form
281,606.22/422,437.05 = 81,928.62/x - Step 3: Cross multiply
281,606.22x = 422,437.05 × 81,928.62 - Step 4: Simplify right side
281,606.22x = 34,609,684,543.37 - Step 5: Solve for x
x = 34,609,684,543.37/281,606.22 - Step 6: Final answer
x = 122,900.99
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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.