Finding the Fourth Proportional to 138,347.30, 207,388.11 and 88,286.06
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Solution
The fourth proportional to 138,347.30, 207,388.11 and 88,286.06 is: 132,344.32
Step by Step Solution
- Step 1: Write the proportion equation
138,347.30 : 207,388.11 = 88,286.06 : x - Step 2: Convert to fraction form
138,347.30/207,388.11 = 88,286.06/x - Step 3: Cross multiply
138,347.30x = 207,388.11 × 88,286.06 - Step 4: Simplify right side
138,347.30x = 18,309,479,122.75 - Step 5: Solve for x
x = 18,309,479,122.75/138,347.30 - Step 6: Final answer
x = 132,344.32
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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.