Finding the Fourth Proportional to 201,087.20, 301,371.60 and 122,117.60
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Solution
The fourth proportional to 201,087.20, 301,371.60 and 122,117.60 is: 183,018.99
Step by Step Solution
- Step 1: Write the proportion equation
201,087.20 : 301,371.60 = 122,117.60 : x - Step 2: Convert to fraction form
201,087.20/301,371.60 = 122,117.60/x - Step 3: Cross multiply
201,087.20x = 301,371.60 × 122,117.60 - Step 4: Simplify right side
201,087.20x = 36,802,776,500.16 - Step 5: Solve for x
x = 36,802,776,500.16/201,087.20 - Step 6: Final answer
x = 183,018.99
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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.