Finding the Fourth Proportional to 207,617.07, 311,425.55 and 118,807.80
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Solution
The fourth proportional to 207,617.07, 311,425.55 and 118,807.80 is: 178,211.66
Step by Step Solution
- Step 1: Write the proportion equation
207,617.07 : 311,425.55 = 118,807.80 : x - Step 2: Convert to fraction form
207,617.07/311,425.55 = 118,807.80/x - Step 3: Cross multiply
207,617.07x = 311,425.55 × 118,807.80 - Step 4: Simplify right side
207,617.07x = 36,999,782,902.16 - Step 5: Solve for x
x = 36,999,782,902.16/207,617.07 - Step 6: Final answer
x = 178,211.66
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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.