Finding the Fourth Proportional to 309,609.21, 427,277.97 and 232,990.50
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Solution
The fourth proportional to 309,609.21, 427,277.97 and 232,990.50 is: 321,539.88
Step by Step Solution
- Step 1: Write the proportion equation
309,609.21 : 427,277.97 = 232,990.50 : x - Step 2: Convert to fraction form
309,609.21/427,277.97 = 232,990.50/x - Step 3: Cross multiply
309,609.21x = 427,277.97 × 232,990.50 - Step 4: Simplify right side
309,609.21x = 99,551,707,869.29 - Step 5: Solve for x
x = 99,551,707,869.29/309,609.21 - Step 6: Final answer
x = 321,539.88
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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.