Finding the Fourth Proportional to 207,021.70, 310,311.08 and 107,081.28
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Solution
The fourth proportional to 207,021.70, 310,311.08 and 107,081.28 is: 160,507.37
Step by Step Solution
- Step 1: Write the proportion equation
207,021.70 : 310,311.08 = 107,081.28 : x - Step 2: Convert to fraction form
207,021.70/310,311.08 = 107,081.28/x - Step 3: Cross multiply
207,021.70x = 310,311.08 × 107,081.28 - Step 4: Simplify right side
207,021.70x = 33,228,507,644.58 - Step 5: Solve for x
x = 33,228,507,644.58/207,021.70 - Step 6: Final answer
x = 160,507.37
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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.