Finding the Fourth Proportional to 207,987.20, 311,980.80 and 183,492.80
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Solution
The fourth proportional to 207,987.20, 311,980.80 and 183,492.80 is: 275,239.20
Step by Step Solution
- Step 1: Write the proportion equation
207,987.20 : 311,980.80 = 183,492.80 : x - Step 2: Convert to fraction form
207,987.20/311,980.80 = 183,492.80/x - Step 3: Cross multiply
207,987.20x = 311,980.80 × 183,492.80 - Step 4: Simplify right side
207,987.20x = 57,246,230,538.24 - Step 5: Solve for x
x = 57,246,230,538.24/207,987.20 - Step 6: Final answer
x = 275,239.20
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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.