Finding the Fourth Proportional to 201,187.05, 301,781.25 and 74,855.13
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Solution
The fourth proportional to 201,187.05, 301,781.25 and 74,855.13 is: 112,282.95
Step by Step Solution
- Step 1: Write the proportion equation
201,187.05 : 301,781.25 = 74,855.13 : x - Step 2: Convert to fraction form
201,187.05/301,781.25 = 74,855.13/x - Step 3: Cross multiply
201,187.05x = 301,781.25 × 74,855.13 - Step 4: Simplify right side
201,187.05x = 22,589,874,700.31 - Step 5: Solve for x
x = 22,589,874,700.31/201,187.05 - Step 6: Final answer
x = 112,282.95
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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.