Finding the Fourth Proportional to 811,205.21, 1,216,714.86 and 212,224.17
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Solution
The fourth proportional to 811,205.21, 1,216,714.86 and 212,224.17 is: 318,311.94
Step by Step Solution
- Step 1: Write the proportion equation
811,205.21 : 1,216,714.86 = 212,224.17 : x - Step 2: Convert to fraction form
811,205.21/1,216,714.86 = 212,224.17/x - Step 3: Cross multiply
811,205.21x = 1,216,714.86 × 212,224.17 - Step 4: Simplify right side
811,205.21x = 258,216,300,229.05 - Step 5: Solve for x
x = 258,216,300,229.05/811,205.21 - Step 6: Final answer
x = 318,311.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.