Finding the Fourth Proportional to 201,085.20, 301,368.60 and 122,115.60
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Solution
The fourth proportional to 201,085.20, 301,368.60 and 122,115.60 is: 183,015.99
Step by Step Solution
- Step 1: Write the proportion equation
201,085.20 : 301,368.60 = 122,115.60 : x - Step 2: Convert to fraction form
201,085.20/301,368.60 = 122,115.60/x - Step 3: Cross multiply
201,085.20x = 301,368.60 × 122,115.60 - Step 4: Simplify right side
201,085.20x = 36,801,807,410.16 - Step 5: Solve for x
x = 36,801,807,410.16/201,085.20 - Step 6: Final answer
x = 183,015.99
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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.