Finding the Fourth Proportional to 207,009.39, 310,435.23 and 135,912.99
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Solution
The fourth proportional to 207,009.39, 310,435.23 and 135,912.99 is: 203,817.71
Step by Step Solution
- Step 1: Write the proportion equation
207,009.39 : 310,435.23 = 135,912.99 : x - Step 2: Convert to fraction form
207,009.39/310,435.23 = 135,912.99/x - Step 3: Cross multiply
207,009.39x = 310,435.23 × 135,912.99 - Step 4: Simplify right side
207,009.39x = 42,192,180,310.64 - Step 5: Solve for x
x = 42,192,180,310.64/207,009.39 - Step 6: Final answer
x = 203,817.71
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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.