Finding the Fourth Proportional to 396,488.96, 547,147.91 and 215,197.00
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Solution
The fourth proportional to 396,488.96, 547,147.91 and 215,197.00 is: 296,968.14
Step by Step Solution
- Step 1: Write the proportion equation
396,488.96 : 547,147.91 = 215,197.00 : x - Step 2: Convert to fraction form
396,488.96/547,147.91 = 215,197.00/x - Step 3: Cross multiply
396,488.96x = 547,147.91 × 215,197.00 - Step 4: Simplify right side
396,488.96x = 117,744,588,396.22 - Step 5: Solve for x
x = 117,744,588,396.22/396,488.96 - Step 6: Final answer
x = 296,968.14
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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.