Finding the Fourth Proportional to 440,896.69, 661,379.21 and 137,252.70
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Solution
The fourth proportional to 440,896.69, 661,379.21 and 137,252.70 is: 205,889.69
Step by Step Solution
- Step 1: Write the proportion equation
440,896.69 : 661,379.21 = 137,252.70 : x - Step 2: Convert to fraction form
440,896.69/661,379.21 = 137,252.70/x - Step 3: Cross multiply
440,896.69x = 661,379.21 × 137,252.70 - Step 4: Simplify right side
440,896.69x = 90,776,082,639.50 - Step 5: Solve for x
x = 90,776,082,639.50/440,896.69 - Step 6: Final answer
x = 205,889.69
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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.