Finding the Fourth Proportional to 145,281.44, 217,905.84 and 40,115.36
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Solution
The fourth proportional to 145,281.44, 217,905.84 and 40,115.36 is: 60,168.53
Step by Step Solution
- Step 1: Write the proportion equation
145,281.44 : 217,905.84 = 40,115.36 : x - Step 2: Convert to fraction form
145,281.44/217,905.84 = 40,115.36/x - Step 3: Cross multiply
145,281.44x = 217,905.84 × 40,115.36 - Step 4: Simplify right side
145,281.44x = 8,741,371,217.70 - Step 5: Solve for x
x = 8,741,371,217.70/145,281.44 - Step 6: Final answer
x = 60,168.53
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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.