Finding the Fourth Proportional to 207,625.10, 311,437.65 and 102,649.10
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Solution
The fourth proportional to 207,625.10, 311,437.65 and 102,649.10 is: 153,973.65
Step by Step Solution
- Step 1: Write the proportion equation
207,625.10 : 311,437.65 = 102,649.10 : x - Step 2: Convert to fraction form
207,625.10/311,437.65 = 102,649.10/x - Step 3: Cross multiply
207,625.10x = 311,437.65 × 102,649.10 - Step 4: Simplify right side
207,625.10x = 31,968,794,478.62 - Step 5: Solve for x
x = 31,968,794,478.62/207,625.10 - Step 6: Final answer
x = 153,973.65
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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.