Finding the Fourth Proportional to 205,361.84, 307,909.92 and 135,027.92
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Solution
The fourth proportional to 205,361.84, 307,909.92 and 135,027.92 is: 202,454.54
Step by Step Solution
- Step 1: Write the proportion equation
205,361.84 : 307,909.92 = 135,027.92 : x - Step 2: Convert to fraction form
205,361.84/307,909.92 = 135,027.92/x - Step 3: Cross multiply
205,361.84x = 307,909.92 × 135,027.92 - Step 4: Simplify right side
205,361.84x = 41,576,436,044.97 - Step 5: Solve for x
x = 41,576,436,044.97/205,361.84 - Step 6: Final answer
x = 202,454.54
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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.