Finding the Fourth Proportional to 209,997.20, 314,995.80 and 201,249.20
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Solution
The fourth proportional to 209,997.20, 314,995.80 and 201,249.20 is: 301,873.80
Step by Step Solution
- Step 1: Write the proportion equation
209,997.20 : 314,995.80 = 201,249.20 : x - Step 2: Convert to fraction form
209,997.20/314,995.80 = 201,249.20/x - Step 3: Cross multiply
209,997.20x = 314,995.80 × 201,249.20 - Step 4: Simplify right side
209,997.20x = 63,392,652,753.36 - Step 5: Solve for x
x = 63,392,652,753.36/209,997.20 - Step 6: Final answer
x = 301,873.80
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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.