Finding the Fourth Proportional to 201,143.20, 282,387.80 and 201,143.20
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Solution
The fourth proportional to 201,143.20, 282,387.80 and 201,143.20 is: 282,387.80
Step by Step Solution
- Step 1: Write the proportion equation
201,143.20 : 282,387.80 = 201,143.20 : x - Step 2: Convert to fraction form
201,143.20/282,387.80 = 201,143.20/x - Step 3: Cross multiply
201,143.20x = 282,387.80 × 201,143.20 - Step 4: Simplify right side
201,143.20x = 56,800,385,732.96 - Step 5: Solve for x
x = 56,800,385,732.96/201,143.20 - Step 6: Final answer
x = 282,387.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.