Finding the Fourth Proportional to 138,197.84, 207,274.60 and 49,434.80
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Solution
The fourth proportional to 138,197.84, 207,274.60 and 49,434.80 is: 74,144.27
Step by Step Solution
- Step 1: Write the proportion equation
138,197.84 : 207,274.60 = 49,434.80 : x - Step 2: Convert to fraction form
138,197.84/207,274.60 = 49,434.80/x - Step 3: Cross multiply
138,197.84x = 207,274.60 × 49,434.80 - Step 4: Simplify right side
138,197.84x = 10,246,578,396.08 - Step 5: Solve for x
x = 10,246,578,396.08/138,197.84 - Step 6: Final answer
x = 74,144.27
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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.