Finding the Fourth Proportional to 201,772.68, 278,442.86 and 111,137.12
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Solution
The fourth proportional to 201,772.68, 278,442.86 and 111,137.12 is: 153,367.33
Step by Step Solution
- Step 1: Write the proportion equation
201,772.68 : 278,442.86 = 111,137.12 : x - Step 2: Convert to fraction form
201,772.68/278,442.86 = 111,137.12/x - Step 3: Cross multiply
201,772.68x = 278,442.86 × 111,137.12 - Step 4: Simplify right side
201,772.68x = 30,945,337,544.96 - Step 5: Solve for x
x = 30,945,337,544.96/201,772.68 - Step 6: Final answer
x = 153,367.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.