Finding the Fourth Proportional to 207,420.76, 310,868.70 and 132,511.96
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Solution
The fourth proportional to 207,420.76, 310,868.70 and 132,511.96 is: 198,600.28
Step by Step Solution
- Step 1: Write the proportion equation
207,420.76 : 310,868.70 = 132,511.96 : x - Step 2: Convert to fraction form
207,420.76/310,868.70 = 132,511.96/x - Step 3: Cross multiply
207,420.76x = 310,868.70 × 132,511.96 - Step 4: Simplify right side
207,420.76x = 41,193,820,739.65 - Step 5: Solve for x
x = 41,193,820,739.65/207,420.76 - Step 6: Final answer
x = 198,600.28
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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.