Finding the Fourth Proportional to 638,740.62, 958,198.41 and 217,903.50
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Solution
The fourth proportional to 638,740.62, 958,198.41 and 217,903.50 is: 326,885.09
Step by Step Solution
- Step 1: Write the proportion equation
638,740.62 : 958,198.41 = 217,903.50 : x - Step 2: Convert to fraction form
638,740.62/958,198.41 = 217,903.50/x - Step 3: Cross multiply
638,740.62x = 958,198.41 × 217,903.50 - Step 4: Simplify right side
638,740.62x = 208,794,787,233.44 - Step 5: Solve for x
x = 208,794,787,233.44/638,740.62 - Step 6: Final answer
x = 326,885.09
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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.