Finding the Fourth Proportional to 638,855.66, 958,076.16 and 212,276.92
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Solution
The fourth proportional to 638,855.66, 958,076.16 and 212,276.92 is: 318,346.49
Step by Step Solution
- Step 1: Write the proportion equation
638,855.66 : 958,076.16 = 212,276.92 : x - Step 2: Convert to fraction form
638,855.66/958,076.16 = 212,276.92/x - Step 3: Cross multiply
638,855.66x = 958,076.16 × 212,276.92 - Step 4: Simplify right side
638,855.66x = 203,377,456,370.23 - Step 5: Solve for x
x = 203,377,456,370.23/638,855.66 - Step 6: Final answer
x = 318,346.49
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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.