Finding the Fourth Proportional to 207,005.20, 310,507.80 and 193,883.20
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Solution
The fourth proportional to 207,005.20, 310,507.80 and 193,883.20 is: 290,824.80
Step by Step Solution
- Step 1: Write the proportion equation
207,005.20 : 310,507.80 = 193,883.20 : x - Step 2: Convert to fraction form
207,005.20/310,507.80 = 193,883.20/x - Step 3: Cross multiply
207,005.20x = 310,507.80 × 193,883.20 - Step 4: Simplify right side
207,005.20x = 60,202,245,888.96 - Step 5: Solve for x
x = 60,202,245,888.96/207,005.20 - Step 6: Final answer
x = 290,824.80
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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.