Finding the Fourth Proportional to 138,164.23, 207,246.35 and 38,324.43
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Solution
The fourth proportional to 138,164.23, 207,246.35 and 38,324.43 is: 57,486.64
Step by Step Solution
- Step 1: Write the proportion equation
138,164.23 : 207,246.35 = 38,324.43 : x - Step 2: Convert to fraction form
138,164.23/207,246.35 = 38,324.43/x - Step 3: Cross multiply
138,164.23x = 207,246.35 × 38,324.43 - Step 4: Simplify right side
138,164.23x = 7,942,597,182.24 - Step 5: Solve for x
x = 7,942,597,182.24/138,164.23 - Step 6: Final answer
x = 57,486.64
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Similar ratio
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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.