Finding the Fourth Proportional to 199,639.09, 275,497.73 and 108,990.67
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Solution
The fourth proportional to 199,639.09, 275,497.73 and 108,990.67 is: 150,404.83
Step by Step Solution
- Step 1: Write the proportion equation
199,639.09 : 275,497.73 = 108,990.67 : x - Step 2: Convert to fraction form
199,639.09/275,497.73 = 108,990.67/x - Step 3: Cross multiply
199,639.09x = 275,497.73 × 108,990.67 - Step 4: Simplify right side
199,639.09x = 30,026,683,137.40 - Step 5: Solve for x
x = 30,026,683,137.40/199,639.09 - Step 6: Final answer
x = 150,404.83
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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.