Finding the Fourth Proportional to 396,438.06, 547,084.81 and 215,149.94
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Solution
The fourth proportional to 396,438.06, 547,084.81 and 215,149.94 is: 296,907.07
Step by Step Solution
- Step 1: Write the proportion equation
396,438.06 : 547,084.81 = 215,149.94 : x - Step 2: Convert to fraction form
396,438.06/547,084.81 = 215,149.94/x - Step 3: Cross multiply
396,438.06x = 547,084.81 × 215,149.94 - Step 4: Simplify right side
396,438.06x = 117,705,264,046.41 - Step 5: Solve for x
x = 117,705,264,046.41/396,438.06 - Step 6: Final answer
x = 296,907.07
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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.