Finding the Fourth Proportional to 378,873.96, 522,843.48 and 209,108.10
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Solution
The fourth proportional to 378,873.96, 522,843.48 and 209,108.10 is: 288,567.75
Step by Step Solution
- Step 1: Write the proportion equation
378,873.96 : 522,843.48 = 209,108.10 : x - Step 2: Convert to fraction form
378,873.96/522,843.48 = 209,108.10/x - Step 3: Cross multiply
378,873.96x = 522,843.48 × 209,108.10 - Step 4: Simplify right side
378,873.96x = 109,330,806,700.19 - Step 5: Solve for x
x = 109,330,806,700.19/378,873.96 - Step 6: Final answer
x = 288,567.75
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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.