Finding the Fourth Proportional to 811,208.22, 1,216,719.36 and 212,227.18
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Solution
The fourth proportional to 811,208.22, 1,216,719.36 and 212,227.18 is: 318,316.45
Step by Step Solution
- Step 1: Write the proportion equation
811,208.22 : 1,216,719.36 = 212,227.18 : x - Step 2: Convert to fraction form
811,208.22/1,216,719.36 = 212,227.18/x - Step 3: Cross multiply
811,208.22x = 1,216,719.36 × 212,227.18 - Step 4: Simplify right side
811,208.22x = 258,220,918,624.21 - Step 5: Solve for x
x = 258,220,918,624.21/811,208.22 - Step 6: Final answer
x = 318,316.45
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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.