Finding the Fourth Proportional to 811,206.96, 1,216,717.48 and 212,225.92
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Solution
The fourth proportional to 811,206.96, 1,216,717.48 and 212,225.92 is: 318,314.56
Step by Step Solution
- Step 1: Write the proportion equation
811,206.96 : 1,216,717.48 = 212,225.92 : x - Step 2: Convert to fraction form
811,206.96/1,216,717.48 = 212,225.92/x - Step 3: Cross multiply
811,206.96x = 1,216,717.48 × 212,225.92 - Step 4: Simplify right side
811,206.96x = 258,218,986,573.08 - Step 5: Solve for x
x = 258,218,986,573.08/811,206.96 - Step 6: Final answer
x = 318,314.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.