Finding the Fourth Proportional to 215,942.24, 298,013.64 and 119,145.62
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Solution
The fourth proportional to 215,942.24, 298,013.64 and 119,145.62 is: 164,428.32
Step by Step Solution
- Step 1: Write the proportion equation
215,942.24 : 298,013.64 = 119,145.62 : x - Step 2: Convert to fraction form
215,942.24/298,013.64 = 119,145.62/x - Step 3: Cross multiply
215,942.24x = 298,013.64 × 119,145.62 - Step 4: Simplify right side
215,942.24x = 35,507,019,906.26 - Step 5: Solve for x
x = 35,507,019,906.26/215,942.24 - Step 6: Final answer
x = 164,428.32
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1.5x scale
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.