Finding the Fourth Proportional to 201,107.10, 301,660.65 and 76,431.90
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Solution
The fourth proportional to 201,107.10, 301,660.65 and 76,431.90 is: 114,647.85
Step by Step Solution
- Step 1: Write the proportion equation
201,107.10 : 301,660.65 = 76,431.90 : x - Step 2: Convert to fraction form
201,107.10/301,660.65 = 76,431.90/x - Step 3: Cross multiply
201,107.10x = 301,660.65 × 76,431.90 - Step 4: Simplify right side
201,107.10x = 23,056,496,634.74 - Step 5: Solve for x
x = 23,056,496,634.74/201,107.10 - Step 6: Final answer
x = 114,647.85
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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.