Finding the Fourth Proportional to 207,351.28, 285,997.37 and 138,405.99
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Solution
The fourth proportional to 207,351.28, 285,997.37 and 138,405.99 is: 190,901.88
Step by Step Solution
- Step 1: Write the proportion equation
207,351.28 : 285,997.37 = 138,405.99 : x - Step 2: Convert to fraction form
207,351.28/285,997.37 = 138,405.99/x - Step 3: Cross multiply
207,351.28x = 285,997.37 × 138,405.99 - Step 4: Simplify right side
207,351.28x = 39,583,749,132.25 - Step 5: Solve for x
x = 39,583,749,132.25/207,351.28 - Step 6: Final answer
x = 190,901.88
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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.