Finding the Fourth Proportional to 207,795.70, 310,915.95 and 137,811.70
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Solution
The fourth proportional to 207,795.70, 310,915.95 and 137,811.70 is: 206,201.84
Step by Step Solution
- Step 1: Write the proportion equation
207,795.70 : 310,915.95 = 137,811.70 : x - Step 2: Convert to fraction form
207,795.70/310,915.95 = 137,811.70/x - Step 3: Cross multiply
207,795.70x = 310,915.95 × 137,811.70 - Step 4: Simplify right side
207,795.70x = 42,847,855,626.62 - Step 5: Solve for x
x = 42,847,855,626.62/207,795.70 - Step 6: Final answer
x = 206,201.84
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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.