Finding the Fourth Proportional to 138,296.36, 207,436.34 and 48,332.75
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Solution
The fourth proportional to 138,296.36, 207,436.34 and 48,332.75 is: 72,496.26
Step by Step Solution
- Step 1: Write the proportion equation
138,296.36 : 207,436.34 = 48,332.75 : x - Step 2: Convert to fraction form
138,296.36/207,436.34 = 48,332.75/x - Step 3: Cross multiply
138,296.36x = 207,436.34 × 48,332.75 - Step 4: Simplify right side
138,296.36x = 10,025,969,012.61 - Step 5: Solve for x
x = 10,025,969,012.61/138,296.36 - Step 6: Final answer
x = 72,496.26
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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.