Finding the Fourth Proportional to 638,635.29, 958,027.05 and 212,209.17
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Solution
The fourth proportional to 638,635.29, 958,027.05 and 212,209.17 is: 318,338.38
Step by Step Solution
- Step 1: Write the proportion equation
638,635.29 : 958,027.05 = 212,209.17 : x - Step 2: Convert to fraction form
638,635.29/958,027.05 = 212,209.17/x - Step 3: Cross multiply
638,635.29x = 958,027.05 × 212,209.17 - Step 4: Simplify right side
638,635.29x = 203,302,125,118.05 - Step 5: Solve for x
x = 203,302,125,118.05/638,635.29 - Step 6: Final answer
x = 318,338.38
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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.