Finding the Fourth Proportional to 396,437.06, 547,083.43 and 215,148.94
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Solution
The fourth proportional to 396,437.06, 547,083.43 and 215,148.94 is: 296,905.70
Step by Step Solution
- Step 1: Write the proportion equation
396,437.06 : 547,083.43 = 215,148.94 : x - Step 2: Convert to fraction form
396,437.06/547,083.43 = 215,148.94/x - Step 3: Cross multiply
396,437.06x = 547,083.43 × 215,148.94 - Step 4: Simplify right side
396,437.06x = 117,704,422,788.13 - Step 5: Solve for x
x = 117,704,422,788.13/396,437.06 - Step 6: Final answer
x = 296,905.70
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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.