Finding the Fourth Proportional to 138,552.76, 207,829.18 and 33,371.68
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Solution
The fourth proportional to 138,552.76, 207,829.18 and 33,371.68 is: 50,057.53
Step by Step Solution
- Step 1: Write the proportion equation
138,552.76 : 207,829.18 = 33,371.68 : x - Step 2: Convert to fraction form
138,552.76/207,829.18 = 33,371.68/x - Step 3: Cross multiply
138,552.76x = 207,829.18 × 33,371.68 - Step 4: Simplify right side
138,552.76x = 6,935,608,889.62 - Step 5: Solve for x
x = 6,935,608,889.62/138,552.76 - Step 6: Final answer
x = 50,057.53
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1.5x scale
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.