Finding the Fourth Proportional to 138,220.10, 207,330.16 and 44,735.30
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Solution
The fourth proportional to 138,220.10, 207,330.16 and 44,735.30 is: 67,102.95
Step by Step Solution
- Step 1: Write the proportion equation
138,220.10 : 207,330.16 = 44,735.30 : x - Step 2: Convert to fraction form
138,220.10/207,330.16 = 44,735.30/x - Step 3: Cross multiply
138,220.10x = 207,330.16 × 44,735.30 - Step 4: Simplify right side
138,220.10x = 9,274,976,906.65 - Step 5: Solve for x
x = 9,274,976,906.65/138,220.10 - Step 6: Final answer
x = 67,102.95
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Double scale
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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.