Finding the Fourth Proportional to 281,207.91, 421,855.86 and 91,624.28
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Solution
The fourth proportional to 281,207.91, 421,855.86 and 91,624.28 is: 137,450.75
Step by Step Solution
- Step 1: Write the proportion equation
281,207.91 : 421,855.86 = 91,624.28 : x - Step 2: Convert to fraction form
281,207.91/421,855.86 = 91,624.28/x - Step 3: Cross multiply
281,207.91x = 421,855.86 × 91,624.28 - Step 4: Simplify right side
281,207.91x = 38,652,237,327.00 - Step 5: Solve for x
x = 38,652,237,327.00/281,207.91 - Step 6: Final answer
x = 137,450.75
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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.