Finding the Fourth Proportional to 138,296.16, 207,418.08 and 49,546.08
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Solution
The fourth proportional to 138,296.16, 207,418.08 and 49,546.08 is: 74,309.75
Step by Step Solution
- Step 1: Write the proportion equation
138,296.16 : 207,418.08 = 49,546.08 : x - Step 2: Convert to fraction form
138,296.16/207,418.08 = 49,546.08/x - Step 3: Cross multiply
138,296.16x = 207,418.08 × 49,546.08 - Step 4: Simplify right side
138,296.16x = 10,276,752,785.13 - Step 5: Solve for x
x = 10,276,752,785.13/138,296.16 - Step 6: Final answer
x = 74,309.75
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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.