Finding the Fourth Proportional to 208,890.73, 313,386.99 and 66,735.82
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Solution
The fourth proportional to 208,890.73, 313,386.99 and 66,735.82 is: 100,119.99
Step by Step Solution
- Step 1: Write the proportion equation
208,890.73 : 313,386.99 = 66,735.82 : x - Step 2: Convert to fraction form
208,890.73/313,386.99 = 66,735.82/x - Step 3: Cross multiply
208,890.73x = 313,386.99 × 66,735.82 - Step 4: Simplify right side
208,890.73x = 20,914,137,754.98 - Step 5: Solve for x
x = 20,914,137,754.98/208,890.73 - Step 6: Final answer
x = 100,119.99
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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.