Finding the Fourth Proportional to 212,740.56, 319,113.36 and 107,563.68
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Solution
The fourth proportional to 212,740.56, 319,113.36 and 107,563.68 is: 161,346.79
Step by Step Solution
- Step 1: Write the proportion equation
212,740.56 : 319,113.36 = 107,563.68 : x - Step 2: Convert to fraction form
212,740.56/319,113.36 = 107,563.68/x - Step 3: Cross multiply
212,740.56x = 319,113.36 × 107,563.68 - Step 4: Simplify right side
212,740.56x = 34,325,007,338.76 - Step 5: Solve for x
x = 34,325,007,338.76/212,740.56 - Step 6: Final answer
x = 161,346.79
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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.