Finding the Fourth Proportional to 201,872.39, 302,855.45 and 68,753.79
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Solution
The fourth proportional to 201,872.39, 302,855.45 and 68,753.79 is: 103,146.65
Step by Step Solution
- Step 1: Write the proportion equation
201,872.39 : 302,855.45 = 68,753.79 : x - Step 2: Convert to fraction form
201,872.39/302,855.45 = 68,753.79/x - Step 3: Cross multiply
201,872.39x = 302,855.45 × 68,753.79 - Step 4: Simplify right side
201,872.39x = 20,822,459,665.89 - Step 5: Solve for x
x = 20,822,459,665.89/201,872.39 - Step 6: Final answer
x = 103,146.65
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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.