Finding the Fourth Proportional to 396,502.83, 547,174.08 and 215,214.75
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Solution
The fourth proportional to 396,502.83, 547,174.08 and 215,214.75 is: 296,996.45
Step by Step Solution
- Step 1: Write the proportion equation
396,502.83 : 547,174.08 = 215,214.75 : x - Step 2: Convert to fraction form
396,502.83/547,174.08 = 215,214.75/x - Step 3: Cross multiply
396,502.83x = 547,174.08 × 215,214.75 - Step 4: Simplify right side
396,502.83x = 117,759,932,833.68 - Step 5: Solve for x
x = 117,759,932,833.68/396,502.83 - Step 6: Final answer
x = 296,996.45
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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.