Finding the Fourth Proportional to 396,437.16, 547,083.64 and 215,149.12
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Solution
The fourth proportional to 396,437.16, 547,083.64 and 215,149.12 is: 296,905.98
Step by Step Solution
- Step 1: Write the proportion equation
396,437.16 : 547,083.64 = 215,149.12 : x - Step 2: Convert to fraction form
396,437.16/547,083.64 = 215,149.12/x - Step 3: Cross multiply
396,437.16x = 547,083.64 × 215,149.12 - Step 4: Simplify right side
396,437.16x = 117,704,563,712.40 - Step 5: Solve for x
x = 117,704,563,712.40/396,437.16 - Step 6: Final answer
x = 296,905.98
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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.