Finding the Fourth Proportional to 138,473.98, 207,710.97 and 33,292.95
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Solution
The fourth proportional to 138,473.98, 207,710.97 and 33,292.95 is: 49,939.43
Step by Step Solution
- Step 1: Write the proportion equation
138,473.98 : 207,710.97 = 33,292.95 : x - Step 2: Convert to fraction form
138,473.98/207,710.97 = 33,292.95/x - Step 3: Cross multiply
138,473.98x = 207,710.97 × 33,292.95 - Step 4: Simplify right side
138,473.98x = 6,915,310,938.66 - Step 5: Solve for x
x = 6,915,310,938.66/138,473.98 - Step 6: Final answer
x = 49,939.43
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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.