Finding the Fourth Proportional to 207,403.93, 311,106.87 and 72,467.44
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Solution
The fourth proportional to 207,403.93, 311,106.87 and 72,467.44 is: 108,701.50
Step by Step Solution
- Step 1: Write the proportion equation
207,403.93 : 311,106.87 = 72,467.44 : x - Step 2: Convert to fraction form
207,403.93/311,106.87 = 72,467.44/x - Step 3: Cross multiply
207,403.93x = 311,106.87 × 72,467.44 - Step 4: Simplify right side
207,403.93x = 22,545,118,435.31 - Step 5: Solve for x
x = 22,545,118,435.31/207,403.93 - Step 6: Final answer
x = 108,701.50
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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.