Finding the Fourth Proportional to 207,587.99, 311,169.78 and 72,611.82
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Solution
The fourth proportional to 207,587.99, 311,169.78 and 72,611.82 is: 108,843.50
Step by Step Solution
- Step 1: Write the proportion equation
207,587.99 : 311,169.78 = 72,611.82 : x - Step 2: Convert to fraction form
207,587.99/311,169.78 = 72,611.82/x - Step 3: Cross multiply
207,587.99x = 311,169.78 × 72,611.82 - Step 4: Simplify right side
207,587.99x = 22,594,602,975.41 - Step 5: Solve for x
x = 22,594,602,975.41/207,587.99 - Step 6: Final answer
x = 108,843.50
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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.