Finding the Fourth Proportional to 449,817.18, 674,626.15 and 129,899.40
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Solution
The fourth proportional to 449,817.18, 674,626.15 and 129,899.40 is: 194,820.33
Step by Step Solution
- Step 1: Write the proportion equation
449,817.18 : 674,626.15 = 129,899.40 : x - Step 2: Convert to fraction form
449,817.18/674,626.15 = 129,899.40/x - Step 3: Cross multiply
449,817.18x = 674,626.15 × 129,899.40 - Step 4: Simplify right side
449,817.18x = 87,633,532,109.31 - Step 5: Solve for x
x = 87,633,532,109.31/449,817.18 - Step 6: Final answer
x = 194,820.33
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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.